64607457 has 16 divisors (see below), whose sum is σ = 88704000. Its totient is φ = 41804112.

The previous prime is 64607423. The next prime is 64607489. The reversal of 64607457 is 75470646.

It is not a de Polignac number, because 64607457 - 2⁶ = 64607393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64607857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20044 + ... + 23042.

It is an arithmetic number, because the mean of its divisors is an integer number (5544000).

Almost surely, 2^64607457 is an apocalyptic number.

It is an amenable number.

64607457 is a deficient number, since it is larger than the sum of its proper divisors (24096543).

64607457 is a wasteful number, since it uses less digits than its factorization.

64607457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3212.

The product of its (nonzero) digits is 141120, while the sum is 39.

The square root of 64607457 is about 8037.8763986516. The cubic root of 64607457 is about 401.2615524473.

The spelling of 64607457 in words is "sixty-four million, six hundred seven thousand, four hundred fifty-seven".