89321649 has 4 divisors (see below), whose sum is σ = 119095536. Its totient is φ = 59547764.

The previous prime is 89321599. The next prime is 89321651. The reversal of 89321649 is 94612398.

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 a de Polignac number, because none of the positive numbers 2^k-89321649 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 89321649.

It is not an unprimeable number, because it can be changed into a prime (89321669) 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 3 ways as a sum of consecutive naturals, for example, 14886939 + ... + 14886944.

It is an arithmetic number, because the mean of its divisors is an integer number (29773884).

Almost surely, 2^89321649 is an apocalyptic number.

It is an amenable number.

89321649 is a deficient number, since it is larger than the sum of its proper divisors (29773887).

89321649 is a wasteful number, since it uses less digits than its factorization.

89321649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29773886.

The product of its digits is 93312, while the sum is 42.

The square root of 89321649 is about 9451.0131202956. The cubic root of 89321649 is about 447.0117208864.

The spelling of 89321649 in words is "eighty-nine million, three hundred twenty-one thousand, six hundred forty-nine".