89912170 has 16 divisors (see below), whose sum is σ = 164496168. Its totient is φ = 35375040.

The previous prime is 89912159. The next prime is 89912177. The reversal of 89912170 is 7121998.

It can be written as a sum of positive squares in 4 ways, for example, as 56746089 + 33166081 = 7533^2 + 5759^2 .

It is not an unprimeable number, because it can be changed into a prime (89912177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73089 + ... + 74308.

Almost surely, 2^89912170 is an apocalyptic number.

89912170 is a deficient number, since it is larger than the sum of its proper divisors (74583998).

89912170 is a wasteful number, since it uses less digits than its factorization.

89912170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147465.

The product of its (nonzero) digits is 9072, while the sum is 37.

The square root of 89912170 is about 9482.2028031465. The cubic root of 89912170 is about 447.9946487722.

The spelling of 89912170 in words is "eighty-nine million, nine hundred twelve thousand, one hundred seventy".