86765256 has 80 divisors (see below), whose sum is σ = 244436940. Its totient is φ = 28753920.

The previous prime is 86765227. The next prime is 86765279. The reversal of 86765256 is 65256768.

It can be written as a sum of positive squares in 2 ways, for example, as 82628100 + 4137156 = 9090^2 + 2034^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 166276 + ... + 166796.

Almost surely, 2^86765256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86765256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122218470).

86765256 is an abundant number, since it is smaller than the sum of its proper divisors (157671684).

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

86765256 is a wasteful number, since it uses less digits than its factorization.

86765256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796 (or 783 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 86765256 is about 9314.7869540854. The cubic root of 86765256 is about 442.7058737511.

The spelling of 86765256 in words is "eighty-six million, seven hundred sixty-five thousand, two hundred fifty-six".