89173971 has 12 divisors (see below), whose sum is σ = 129143040. Its totient is φ = 59294160.

The previous prime is 89173961. The next prime is 89173991. The reversal of 89173971 is 17937198.

It is not a de Polignac number, because 89173971 - 2⁹ = 89173459 is a prime.

It is a super-3 number, since 3×89173971³ (a number of 25 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (89173901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9235 + ... + 16236.

It is an arithmetic number, because the mean of its divisors is an integer number (10761920).

Almost surely, 2^89173971 is an apocalyptic number.

89173971 is a deficient number, since it is larger than the sum of its proper divisors (39969069).

89173971 is a wasteful number, since it uses less digits than its factorization.

89173971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25866 (or 25863 counting only the distinct ones).

The product of its digits is 95256, while the sum is 45.

The square root of 89173971 is about 9443.1970751436. The cubic root of 89173971 is about 446.7652326351.

The spelling of 89173971 in words is "eighty-nine million, one hundred seventy-three thousand, nine hundred seventy-one".