64350657 has 24 divisors (see below), whose sum is σ = 107215680. Its totient is φ = 36430560.

The previous prime is 64350653. The next prime is 64350667. The reversal of 64350657 is 75605346.

64350657 is a `hidden beast` number, since 643 + 5 + 0 + 6 + 5 + 7 = 666.

It is not a de Polignac number, because 64350657 - 2² = 64350653 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64350653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2182 + ... + 11552.

It is an arithmetic number, because the mean of its divisors is an integer number (4467320).

Almost surely, 2^64350657 is an apocalyptic number.

It is an amenable number.

64350657 is a deficient number, since it is larger than the sum of its proper divisors (42865023).

64350657 is a wasteful number, since it uses less digits than its factorization.

64350657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9493 (or 9490 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 64350657 is about 8021.8861248462. The cubic root of 64350657 is about 400.7292052581.

The spelling of 64350657 in words is "sixty-four million, three hundred fifty thousand, six hundred fifty-seven".