3268742621 has 4 divisors (see below), whose sum is σ = 3278442492. Its totient is φ = 3259042752.

The previous prime is 3268742611. The next prime is 3268742623. The reversal of 3268742621 is 1262478623.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 620508100 + 2648234521 = 24910^2 + 51461^2 .

It is a cyclic number.

It is not a de Polignac number, because 3268742621 - 2⁶ = 3268742557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3268742623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4849430 + ... + 4850103.

It is an arithmetic number, because the mean of its divisors is an integer number (819610623).

Almost surely, 2^3268742621 is an apocalyptic number.

It is an amenable number.

3268742621 is a deficient number, since it is larger than the sum of its proper divisors (9699871).

3268742621 is an equidigital number, since it uses as much as digits as its factorization.

3268742621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9699870.

The product of its digits is 193536, while the sum is 41.

The square root of 3268742621 is about 57172.9185978816. The cubic root of 3268742621 is about 1484.0900108691.

The spelling of 3268742621 in words is "three billion, two hundred sixty-eight million, seven hundred forty-two thousand, six hundred twenty-one".