89131929 has 4 divisors (see below), whose sum is σ = 118842576. Its totient is φ = 59421284.

The previous prime is 89131897. The next prime is 89131937. The reversal of 89131929 is 92913198.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 89131929 - 2⁵ = 89131897 is a prime.

It is a super-2 number, since 2×89131929² = 15889001534522082, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (89131979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14855319 + ... + 14855324.

It is an arithmetic number, because the mean of its divisors is an integer number (29710644).

Almost surely, 2^89131929 is an apocalyptic number.

It is an amenable number.

89131929 is a deficient number, since it is larger than the sum of its proper divisors (29710647).

89131929 is a wasteful number, since it uses less digits than its factorization.

89131929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29710646.

The product of its digits is 34992, while the sum is 42.

The square root of 89131929 is about 9440.9707657634. The cubic root of 89131929 is about 446.6950108866.

The spelling of 89131929 in words is "eighty-nine million, one hundred thirty-one thousand, nine hundred twenty-nine".