86805290 has 32 divisors (see below), whose sum is σ = 183568896. Its totient is φ = 29136960.

The previous prime is 86805269. The next prime is 86805317. The reversal of 86805290 is 9250868.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28922 + ... + 31781.

It is an arithmetic number, because the mean of its divisors is an integer number (5736528).

Almost surely, 2^86805290 is an apocalyptic number.

86805290 is an abundant number, since it is smaller than the sum of its proper divisors (96763606).

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

86805290 is a wasteful number, since it uses less digits than its factorization.

86805290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60734.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 86805290 is about 9316.9356550316. The cubic root of 86805290 is about 442.7739523138.

The spelling of 86805290 in words is "eighty-six million, eight hundred five thousand, two hundred ninety".