86533312 has 56 divisors (see below), whose sum is σ = 177430176. Its totient is φ = 41852928.

The previous prime is 86533301. The next prime is 86533327. The reversal of 86533312 is 21333568.

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, 328893 + ... + 329155.

It is an arithmetic number, because the mean of its divisors is an integer number (3168396).

Almost surely, 2^86533312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86533312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88715088).

86533312 is an abundant number, since it is smaller than the sum of its proper divisors (90896864).

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

86533312 is a wasteful number, since it uses less digits than its factorization.

86533312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425 (or 415 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 86533312 is about 9302.3283106973. The cubic root of 86533312 is about 442.3110359606.

The spelling of 86533312 in words is "eighty-six million, five hundred thirty-three thousand, three hundred twelve".