89158971 has 48 divisors (see below), whose sum is σ = 139426560. Its totient is φ = 50529600.

The previous prime is 89158967. The next prime is 89158973. The reversal of 89158971 is 17985198.

It is not a de Polignac number, because 89158971 - 2² = 89158967 is a prime.

Its product of digits (181440) is a multiple of the sum of its prime factors (288).

It is a self number, because there is not a number n which added to its sum of digits gives 89158971.

It is not an unprimeable number, because it can be changed into a prime (89158973) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 492501 + ... + 492681.

It is an arithmetic number, because the mean of its divisors is an integer number (2904720).

Almost surely, 2^89158971 is an apocalyptic number.

89158971 is a deficient number, since it is larger than the sum of its proper divisors (50267589).

89158971 is a wasteful number, since it uses less digits than its factorization.

89158971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288 (or 277 counting only the distinct ones).

The product of its digits is 181440, while the sum is 48.

The square root of 89158971 is about 9442.4028191981. The cubic root of 89158971 is about 446.7401810264.

The spelling of 89158971 in words is "eighty-nine million, one hundred fifty-eight thousand, nine hundred seventy-one".