89989992732 has 24 divisors (see below), whose sum is σ = 210647510416. Its totient is φ = 29900827008.

The previous prime is 89989992731. The next prime is 89989992737. The reversal of 89989992732 is 23729998998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89989992731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11975743 + ... + 11983254.

Almost surely, 2^89989992732 is an apocalyptic number.

It is an amenable number.

89989992732 is an abundant number, since it is smaller than the sum of its proper divisors (120657517684).

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

89989992732 is a wasteful number, since it uses less digits than its factorization.

89989992732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23959317 (or 23959315 counting only the distinct ones).

The product of its digits is 317447424, while the sum is 75.

The spelling of 89989992732 in words is "eighty-nine billion, nine hundred eighty-nine million, nine hundred ninety-two thousand, seven hundred thirty-two".