89903425921 has 27 divisors (see below), whose sum is σ = 97407565281. Its totient is φ = 82964251944.

The previous prime is 89903425879. The next prime is 89903425939. The reversal of 89903425921 is 12952430998.

The square root of 89903425921 is 299839.

It is a perfect power (a square), and thus also a powerful number.

It is a de Polignac number, because none of the positive numbers 2^k-89903425921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89903425321) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 244968280 + ... + 244968646.

It is an arithmetic number, because the mean of its divisors is an integer number (3607687603).

Almost surely, 2^89903425921 is an apocalyptic number.

89903425921 is the 299839-th square number.

89903425921 is the 149920-th centered octagonal number.

It is an amenable number.

89903425921 is a deficient number, since it is larger than the sum of its proper divisors (7504139360).

89903425921 is an frugal number, since it uses more digits than its factorization.

89903425921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858 (or 429 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 52.

The spelling of 89903425921 in words is "eighty-nine billion, nine hundred three million, four hundred twenty-five thousand, nine hundred twenty-one".