3263921685 has 12 divisors (see below), whose sum is σ = 5657464332. Its totient is φ = 1740758208.

The previous prime is 3263921671. The next prime is 3263921699. The reversal of 3263921685 is 5861293623.

3263921685 is a `hidden beast` number, since 3 + 2 + 639 + 2 + 1 + 6 + 8 + 5 = 666.

3263921685 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3263921671) and next prime (3263921699).

It can be written as a sum of positive squares in 2 ways, for example, as 1099718244 + 2164203441 = 33162^2 + 46521^2 .

It is not a de Polignac number, because 3263921685 - 2⁸ = 3263921429 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 72531593 = 3263921685 / (3 + 2 + 6 + 3 + 9 + 2 + 1 + 6 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 3263921685.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36265752 + ... + 36265841.

It is an arithmetic number, because the mean of its divisors is an integer number (471455361).

Almost surely, 2^3263921685 is an apocalyptic number.

It is an amenable number.

3263921685 is a deficient number, since it is larger than the sum of its proper divisors (2393542647).

3263921685 is a wasteful number, since it uses less digits than its factorization.

3263921685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72531604 (or 72531601 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 3263921685 is about 57130.7420308891. The cubic root of 3263921685 is about 1483.3600438176.

The spelling of 3263921685 in words is "three billion, two hundred sixty-three million, nine hundred twenty-one thousand, six hundred eighty-five".