86872790 has 16 divisors (see below), whose sum is σ = 156739968. Its totient is φ = 34667136.

The previous prime is 86872789. The next prime is 86872829. The reversal of 86872790 is 9727868.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5702 + ... + 14361.

It is an arithmetic number, because the mean of its divisors is an integer number (9796248).

Almost surely, 2^86872790 is an apocalyptic number.

86872790 is a deficient number, since it is larger than the sum of its proper divisors (69867178).

86872790 is a wasteful number, since it uses less digits than its factorization.

86872790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20503.

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 86872790 is about 9320.5573867661. The cubic root of 86872790 is about 442.8886899384. Note that the first 3 decimals are identical.

The spelling of 86872790 in words is "eighty-six million, eight hundred seventy-two thousand, seven hundred ninety".