64568264 has 8 divisors (see below), whose sum is σ = 121065510. Its totient is φ = 32284128.

The previous prime is 64568263. The next prime is 64568269. The reversal of 64568264 is 46286546.

It can be written as a sum of positive squares in only one way, i.e., 56400100 + 8168164 = 7510^2 + 2858^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (64568263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4035509 + ... + 4035524.

Almost surely, 2^64568264 is an apocalyptic number.

It is an amenable number.

64568264 is a deficient number, since it is larger than the sum of its proper divisors (56497246).

64568264 is a wasteful number, since it uses less digits than its factorization.

64568264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8071039 (or 8071035 counting only the distinct ones).

The product of its digits is 276480, while the sum is 41.

The square root of 64568264 is about 8035.4380092189. The cubic root of 64568264 is about 401.1803965668.

The spelling of 64568264 in words is "sixty-four million, five hundred sixty-eight thousand, two hundred sixty-four".