89089631 has 4 divisors (see below), whose sum is σ = 89113200. Its totient is φ = 89066064.

The previous prime is 89089621. The next prime is 89089669. The reversal of 89089631 is 13698098.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89089631 is a prime.

It is a super-2 number, since 2×89089631² = 15873924703432322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89089621) 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 3 ways as a sum of consecutive naturals, for example, 4691 + ... + 14148.

It is an arithmetic number, because the mean of its divisors is an integer number (22278300).

Almost surely, 2^89089631 is an apocalyptic number.

89089631 is a deficient number, since it is larger than the sum of its proper divisors (23569).

89089631 is a wasteful number, since it uses less digits than its factorization.

89089631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23568.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 89089631 is about 9438.7303701292. The cubic root of 89089631 is about 446.6243392603.

The spelling of 89089631 in words is "eighty-nine million, eighty-nine thousand, six hundred thirty-one".