64604265 has 32 divisors (see below), whose sum is σ = 113688576. Its totient is φ = 31066560.

The previous prime is 64604261. The next prime is 64604269. The reversal of 64604265 is 56240646.

It is an interprime number because it is at equal distance from previous prime (64604261) and next prime (64604269).

It is not a de Polignac number, because 64604265 - 2² = 64604261 is a prime.

It is a super-2 number, since 2×64604265² = 8347422112380450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (64604261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19414 + ... + 22496.

It is an arithmetic number, because the mean of its divisors is an integer number (3552768).

Almost surely, 2^64604265 is an apocalyptic number.

It is an amenable number.

64604265 is a deficient number, since it is larger than the sum of its proper divisors (49084311).

64604265 is a wasteful number, since it uses less digits than its factorization.

64604265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3229.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 64604265 is about 8037.6778362908. The cubic root of 64604265 is about 401.2549440875.

The spelling of 64604265 in words is "sixty-four million, six hundred four thousand, two hundred sixty-five".