89992312 has 8 divisors (see below), whose sum is σ = 168735600. Its totient is φ = 44996152.

The previous prime is 89992267. The next prime is 89992321. The reversal of 89992312 is 21329998.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5624512 + ... + 5624527.

It is an arithmetic number, because the mean of its divisors is an integer number (21091950).

Almost surely, 2^89992312 is an apocalyptic number.

It is an amenable number.

89992312 is a deficient number, since it is larger than the sum of its proper divisors (78743288).

89992312 is a wasteful number, since it uses less digits than its factorization.

89992312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11249045 (or 11249041 counting only the distinct ones).

The product of its digits is 69984, while the sum is 43.

The square root of 89992312 is about 9486.4277786741. The cubic root of 89992312 is about 448.1277139073.

It can be divided in two parts, 8999 and 2312, that added together give a palindrome (11311).

The spelling of 89992312 in words is "eighty-nine million, nine hundred ninety-two thousand, three hundred twelve".