77872264 has 16 divisors (see below), whose sum is σ = 148766220. Its totient is φ = 38201280.

The previous prime is 77872253. The next prime is 77872283. The reversal of 77872264 is 46227877.

It can be written as a sum of positive squares in 2 ways, for example, as 71267364 + 6604900 = 8442^2 + 2570^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 77872264.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91407 + ... + 92254.

Almost surely, 2^77872264 is an apocalyptic number.

It is an amenable number.

77872264 is a deficient number, since it is larger than the sum of its proper divisors (70893956).

77872264 is a wasteful number, since it uses less digits than its factorization.

77872264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183720 (or 183716 counting only the distinct ones).

The product of its digits is 263424, while the sum is 43.

The square root of 77872264 is about 8824.5262762372. The cubic root of 77872264 is about 427.0325046967.

The spelling of 77872264 in words is "seventy-seven million, eight hundred seventy-two thousand, two hundred sixty-four".