86688324 has 18 divisors (see below), whose sum is σ = 219128910. Its totient is φ = 28896096.

The previous prime is 86688319. The next prime is 86688353. The reversal of 86688324 is 42388668.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 67765824 + 18922500 = 8232^2 + 4350^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 86688324.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1203969 + ... + 1204040.

Almost surely, 2^86688324 is an apocalyptic number.

It is an amenable number.

86688324 is an abundant number, since it is smaller than the sum of its proper divisors (132440586).

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

86688324 is a wasteful number, since it uses less digits than its factorization.

86688324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2408019 (or 2408014 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The square root of 86688324 is about 9310.6564752438. The cubic root of 86688324 is about 442.5749906421.

The spelling of 86688324 in words is "eighty-six million, six hundred eighty-eight thousand, three hundred twenty-four".