3263987693 has 4 divisors (see below), whose sum is σ = 3264656160. Its totient is φ = 3263319228.

The previous prime is 3263987681. The next prime is 3263987717. The reversal of 3263987693 is 3967893623.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3967893623 = 25453 ⋅155891.

It is a cyclic number.

It is not a de Polignac number, because 3263987693 - 2⁴ = 3263987677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3263987603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326855 + ... + 336692.

It is an arithmetic number, because the mean of its divisors is an integer number (816164040).

Almost surely, 2^3263987693 is an apocalyptic number.

It is an amenable number.

3263987693 is a deficient number, since it is larger than the sum of its proper divisors (668467).

3263987693 is an equidigital number, since it uses as much as digits as its factorization.

3263987693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668466.

The product of its digits is 8817984, while the sum is 56.

The square root of 3263987693 is about 57131.3197204476. The cubic root of 3263987693 is about 1483.3700433395.

The spelling of 3263987693 in words is "three billion, two hundred sixty-three million, nine hundred eighty-seven thousand, six hundred ninety-three".