89173172 has 12 divisors (see below), whose sum is σ = 170239776. Its totient is φ = 40533240.

The previous prime is 89173151. The next prime is 89173199. The reversal of 89173172 is 27137198.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1013288 + ... + 1013375.

It is an arithmetic number, because the mean of its divisors is an integer number (14186648).

Almost surely, 2^89173172 is an apocalyptic number.

It is an amenable number.

89173172 is a deficient number, since it is larger than the sum of its proper divisors (81066604).

89173172 is a wasteful number, since it uses less digits than its factorization.

89173172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2026678 (or 2026676 counting only the distinct ones).

The product of its digits is 21168, while the sum is 38.

The square root of 89173172 is about 9443.1547694613. The cubic root of 89173172 is about 446.7638982903.

The spelling of 89173172 in words is "eighty-nine million, one hundred seventy-three thousand, one hundred seventy-two".