89130321 has 16 divisors (see below), whose sum is σ = 150908800. Its totient is φ = 50931504.

The previous prime is 89130319. The next prime is 89130343. The reversal of 89130321 is 12303198.

It is not a de Polignac number, because 89130321 - 2¹ = 89130319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (89130361) 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, 235606 + ... + 235983.

It is an arithmetic number, because the mean of its divisors is an integer number (9431800).

Almost surely, 2^89130321 is an apocalyptic number.

It is an amenable number.

89130321 is a deficient number, since it is larger than the sum of its proper divisors (61778479).

89130321 is a wasteful number, since it uses less digits than its factorization.

89130321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471605 (or 471599 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 89130321 is about 9440.8856046454. The cubic root of 89130321 is about 446.6923246443.

The spelling of 89130321 in words is "eighty-nine million, one hundred thirty thousand, three hundred twenty-one".