870779136 has 36 divisors (see below), whose sum is σ = 2317544432. Its totient is φ = 290259456.

The previous prime is 870779131. The next prime is 870779167. The reversal of 870779136 is 631977078.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (870779131) 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, 566146 + ... + 567681.

Almost surely, 2^870779136 is an apocalyptic number.

It is an amenable number.

870779136 is an abundant number, since it is smaller than the sum of its proper divisors (1446765296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

870779136 is a wasteful number, since it uses less digits than its factorization.

870779136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133846 (or 1133832 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 48.

The square root of 870779136 is about 29508.9670439343. The cubic root of 870779136 is about 954.9251646813.

The spelling of 870779136 in words is "eight hundred seventy million, seven hundred seventy-nine thousand, one hundred thirty-six".