86521323 has 16 divisors (see below), whose sum is σ = 131978240. Its totient is φ = 49389696.

The previous prime is 86521319. The next prime is 86521361. The reversal of 86521323 is 32312568.

It is not a de Polignac number, because 86521323 - 2² = 86521319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86521373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29886 + ... + 32652.

It is an arithmetic number, because the mean of its divisors is an integer number (8248640).

Almost surely, 2^86521323 is an apocalyptic number.

86521323 is a deficient number, since it is larger than the sum of its proper divisors (45456917).

86521323 is a wasteful number, since it uses less digits than its factorization.

86521323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4266.

The product of its digits is 8640, while the sum is 30.

The square root of 86521323 is about 9301.6838798145. The cubic root of 86521323 is about 442.2906079435.

The spelling of 86521323 in words is "eighty-six million, five hundred twenty-one thousand, three hundred twenty-three".