89231013 has 12 divisors (see below), whose sum is σ = 132373228. Its totient is φ = 57879360.

The previous prime is 89230993. The next prime is 89231017. The reversal of 89231013 is 31013298.

It can be written as a sum of positive squares in 2 ways, for example, as 55845729 + 33385284 = 7473^2 + 5778^2 .

It is not a de Polignac number, because 89231013 - 2⁶ = 89230949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89231017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133648 + ... + 134313.

Almost surely, 2^89231013 is an apocalyptic number.

It is an amenable number.

89231013 is a deficient number, since it is larger than the sum of its proper divisors (43142215).

89231013 is a wasteful number, since it uses less digits than its factorization.

89231013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268004 (or 268001 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 89231013 is about 9446.2168617918. The cubic root of 89231013 is about 446.8604732461.

The spelling of 89231013 in words is "eighty-nine million, two hundred thirty-one thousand, thirteen".