86715522 has 48 divisors (see below), whose sum is σ = 196691040. Its totient is φ = 28631232.

The previous prime is 86715493. The next prime is 86715547. The reversal of 86715522 is 22551768.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54129 + ... + 55707.

It is an arithmetic number, because the mean of its divisors is an integer number (4097730).

Almost surely, 2^86715522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86715522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98345520).

86715522 is an abundant number, since it is smaller than the sum of its proper divisors (109975518).

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

86715522 is a wasteful number, since it uses less digits than its factorization.

86715522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709 (or 1697 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 86715522 is about 9312.1169451420. The cubic root of 86715522 is about 442.6212709845.

The spelling of 86715522 in words is "eighty-six million, seven hundred fifteen thousand, five hundred twenty-two".