89184321 has 20 divisors (see below), whose sum is σ = 134093652. Its totient is φ = 59069088.

The previous prime is 89184299. The next prime is 89184323. The reversal of 89184321 is 12348198.

It can be written as a sum of positive squares in 2 ways, for example, as 51840000 + 37344321 = 7200^2 + 6111^2 .

It is not a de Polignac number, because 89184321 - 2⁵ = 89184289 is a prime.

It is a super-2 number, since 2×89184321² = 15907686224462082, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (89184323) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9211 + ... + 16223.

Almost surely, 2^89184321 is an apocalyptic number.

89184321 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

89184321 is a deficient number, since it is larger than the sum of its proper divisors (44909331).

89184321 is a wasteful number, since it uses less digits than its factorization.

89184321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7182 (or 7173 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 89184321 is about 9443.7450727982. The cubic root of 89184321 is about 446.7825166072.

The spelling of 89184321 in words is "eighty-nine million, one hundred eighty-four thousand, three hundred twenty-one".