89831371 has 4 divisors (see below), whose sum is σ = 102664432. Its totient is φ = 76998312.

The previous prime is 89831363. The next prime is 89831393. The reversal of 89831371 is 17313898.

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

It is a cyclic number.

It is not a de Polignac number, because 89831371 - 2³ = 89831363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89831321) 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, 6416520 + ... + 6416533.

It is an arithmetic number, because the mean of its divisors is an integer number (25666108).

Almost surely, 2^89831371 is an apocalyptic number.

89831371 is a deficient number, since it is larger than the sum of its proper divisors (12833061).

89831371 is a wasteful number, since it uses less digits than its factorization.

89831371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12833060.

The product of its digits is 36288, while the sum is 40.

The square root of 89831371 is about 9477.9412848994. The cubic root of 89831371 is about 447.8604127063.

The spelling of 89831371 in words is "eighty-nine million, eight hundred thirty-one thousand, three hundred seventy-one".