877266664 has 16 divisors (see below), whose sum is σ = 1645193700. Its totient is φ = 438548352.

The previous prime is 877266659. The next prime is 877266679. The reversal of 877266664 is 466662778.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 872729764 + 4536900 = 29542^2 + 2130^2 .

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, 64492 + ... + 76900.

Almost surely, 2^877266664 is an apocalyptic number.

It is an amenable number.

877266664 is a deficient number, since it is larger than the sum of its proper divisors (767927036).

877266664 is a wasteful number, since it uses less digits than its factorization.

877266664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21252 (or 21248 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 52.

The square root of 877266664 is about 29618.6877494598. The cubic root of 877266664 is about 957.2907787295.

The spelling of 877266664 in words is "eight hundred seventy-seven million, two hundred sixty-six thousand, six hundred sixty-four".