64023057 has 18 divisors (see below), whose sum is σ = 107576898. Its totient is φ = 36584352.

The previous prime is 64023023. The next prime is 64023067. The reversal of 64023057 is 75032046.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 64016001 + 7056 = 8001^2 + 84^2 .

It is not a de Polignac number, because 64023057 - 2¹⁴ = 64006673 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64023057.

It is not an unprimeable number, because it can be changed into a prime (64023067) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 72148 + ... + 73029.

Almost surely, 2^64023057 is an apocalyptic number.

It is an amenable number.

64023057 is a deficient number, since it is larger than the sum of its proper divisors (43553841).

64023057 is a wasteful number, since it uses less digits than its factorization.

64023057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145197 (or 145187 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 64023057 is about 8001.4409327321. The cubic root of 64023057 is about 400.0480296493.

The spelling of 64023057 in words is "sixty-four million, twenty-three thousand, fifty-seven".