89173964 has 24 divisors (see below), whose sum is σ = 170846928. Its totient is φ = 40389440.

The previous prime is 89173961. The next prime is 89173991. The reversal of 89173964 is 46937198.

It is not an unprimeable number, because it can be changed into a prime (89173961) 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, 9434 + ... + 16350.

It is an arithmetic number, because the mean of its divisors is an integer number (7118622).

Almost surely, 2^89173964 is an apocalyptic number.

It is an amenable number.

89173964 is a deficient number, since it is larger than the sum of its proper divisors (81672964).

89173964 is a wasteful number, since it uses less digits than its factorization.

89173964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7225 (or 7223 counting only the distinct ones).

The product of its digits is 326592, while the sum is 47.

The square root of 89173964 is about 9443.1967045064. The cubic root of 89173964 is about 446.7652209450.

It can be divided in two parts, 891 and 73964, that multiplied together give a square (65901924 = 8118²).

The spelling of 89173964 in words is "eighty-nine million, one hundred seventy-three thousand, nine hundred sixty-four".