64277264 has 20 divisors (see below), whose sum is σ = 124670220. Its totient is φ = 32104320.

The previous prime is 64277261. The next prime is 64277267. The reversal of 64277264 is 46277246.

It is an interprime number because it is at equal distance from previous prime (64277261) and next prime (64277267).

It can be written as a sum of positive squares in 2 ways, for example, as 43665664 + 20611600 = 6608^2 + 4540^2 .

It is not an unprimeable number, because it can be changed into a prime (64277261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20642 + ... + 23550.

It is an arithmetic number, because the mean of its divisors is an integer number (6233511).

Almost surely, 2^64277264 is an apocalyptic number.

It is an amenable number.

64277264 is a deficient number, since it is larger than the sum of its proper divisors (60392956).

64277264 is a wasteful number, since it uses less digits than its factorization.

64277264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4298 (or 4292 counting only the distinct ones).

The product of its digits is 112896, while the sum is 38.

The square root of 64277264 is about 8017.3102721549. The cubic root of 64277264 is about 400.5768011845.

The spelling of 64277264 in words is "sixty-four million, two hundred seventy-seven thousand, two hundred sixty-four".