3257934665 has 16 divisors (see below), whose sum is σ = 4002667920. Its totient is φ = 2544875520.

The previous prime is 3257934637. The next prime is 3257934709. The reversal of 3257934665 is 5664397523.

It can be written as a sum of positive squares in 8 ways, for example, as 210453049 + 3047481616 = 14507^2 + 55204^2 .

It is not a de Polignac number, because 3257934665 - 2²⁶ = 3190825801 is a prime.

It is a super-2 number, since 2×3257934665² = 21228276562817324450, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2801 + ... + 80769.

It is an arithmetic number, because the mean of its divisors is an integer number (250166745).

Almost surely, 2^3257934665 is an apocalyptic number.

It is an amenable number.

3257934665 is a deficient number, since it is larger than the sum of its proper divisors (744733255).

3257934665 is a wasteful number, since it uses less digits than its factorization.

3257934665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78172.

The product of its digits is 4082400, while the sum is 50.

The square root of 3257934665 is about 57078.3204465583. The cubic root of 3257934665 is about 1482.4525116383.

The spelling of 3257934665 in words is "three billion, two hundred fifty-seven million, nine hundred thirty-four thousand, six hundred sixty-five".