89528930821 has 16 divisors (see below), whose sum is σ = 100536289920. Its totient is φ = 79009663680.

The previous prime is 89528930809. The next prime is 89528930857. The reversal of 89528930821 is 12803982598.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 89528930821 - 2⁵ = 89528930789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89528930891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71866 + ... + 429211.

It is an arithmetic number, because the mean of its divisors is an integer number (6283518120).

Almost surely, 2^89528930821 is an apocalyptic number.

It is an amenable number.

89528930821 is a deficient number, since it is larger than the sum of its proper divisors (11007359099).

89528930821 is a wasteful number, since it uses less digits than its factorization.

89528930821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501564.

The product of its (nonzero) digits is 2488320, while the sum is 55.

The spelling of 89528930821 in words is "eighty-nine billion, five hundred twenty-eight million, nine hundred thirty thousand, eight hundred twenty-one".