64694792 has 16 divisors (see below), whose sum is σ = 128438460. Its totient is φ = 30444544.

The previous prime is 64694771. The next prime is 64694801. The reversal of 64694792 is 29749646.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 64224196 + 470596 = 8014^2 + 686^2 .

It is a super-2 number, since 2×64694792² = 8370832223846528, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237713 + ... + 237984.

Almost surely, 2^64694792 is an apocalyptic number.

It is an amenable number.

64694792 is a deficient number, since it is larger than the sum of its proper divisors (63743668).

64694792 is a wasteful number, since it uses less digits than its factorization.

64694792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475720 (or 475716 counting only the distinct ones).

The product of its digits is 653184, while the sum is 47.

The square root of 64694792 is about 8043.3072799689. The cubic root of 64694792 is about 401.4422766779.

The spelling of 64694792 in words is "sixty-four million, six hundred ninety-four thousand, seven hundred ninety-two".