89091312 has 20 divisors (see below), whose sum is σ = 230152680. Its totient is φ = 29697088.

The previous prime is 89091311. The next prime is 89091329. The reversal of 89091312 is 21319098.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89091311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 927987 + ... + 928082.

It is an arithmetic number, because the mean of its divisors is an integer number (11507634).

Almost surely, 2^89091312 is an apocalyptic number.

It is an amenable number.

89091312 is an abundant number, since it is smaller than the sum of its proper divisors (141061368).

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

89091312 is a wasteful number, since it uses less digits than its factorization.

89091312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1856080 (or 1856074 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 89091312 is about 9438.8194177026. The cubic root of 89091312 is about 446.6271483069.

The spelling of 89091312 in words is "eighty-nine million, ninety-one thousand, three hundred twelve".