89972892 has 18 divisors (see below), whose sum is σ = 227431568. Its totient is φ = 29990952.

The previous prime is 89972887. The next prime is 89972917. The reversal of 89972892 is 29827998.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1249588 + ... + 1249659.

Almost surely, 2^89972892 is an apocalyptic number.

It is an amenable number.

89972892 is an abundant number, since it is smaller than the sum of its proper divisors (137458676).

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

89972892 is a wasteful number, since it uses less digits than its factorization.

89972892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2499257 (or 2499252 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 54.

The square root of 89972892 is about 9485.4041558597. The cubic root of 89972892 is about 448.0954768340.

The spelling of 89972892 in words is "eighty-nine million, nine hundred seventy-two thousand, eight hundred ninety-two".