89175021 has 16 divisors (see below), whose sum is σ = 129319680. Its totient is φ = 54331200.

The previous prime is 89175017. The next prime is 89175059. The reversal of 89175021 is 12057198.

It is not a de Polignac number, because 89175021 - 2² = 89175017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89175001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7381 + ... + 15258.

It is an arithmetic number, because the mean of its divisors is an integer number (8082480).

Almost surely, 2^89175021 is an apocalyptic number.

It is an amenable number.

89175021 is a deficient number, since it is larger than the sum of its proper divisors (40144659).

89175021 is a wasteful number, since it uses less digits than its factorization.

89175021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22756.

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 89175021 is about 9443.2526705580. The cubic root of 89175021 is about 446.7669861425.

The spelling of 89175021 in words is "eighty-nine million, one hundred seventy-five thousand, twenty-one".