89900031 has 64 divisors (see below), whose sum is σ = 143990784. Its totient is φ = 49420800.

The previous prime is 89900023. The next prime is 89900051. The reversal of 89900031 is 13000998.

It is a happy number.

It is not a de Polignac number, because 89900031 - 2³ = 89900023 is a prime.

It is a super-2 number, since 2×89900031² = 16164031147601922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89900051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1473741 + ... + 1473801.

It is an arithmetic number, because the mean of its divisors is an integer number (2249856).

Almost surely, 2^89900031 is an apocalyptic number.

89900031 is a deficient number, since it is larger than the sum of its proper divisors (54090753).

89900031 is a wasteful number, since it uses less digits than its factorization.

89900031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 89900031 is about 9481.5626876586. The cubic root of 89900031 is about 447.9744866822.

The spelling of 89900031 in words is "eighty-nine million, nine hundred thousand, thirty-one".