89324978 has 18 divisors (see below), whose sum is σ = 138182877. Its totient is φ = 43305840.

The previous prime is 89324971. The next prime is 89325013. The reversal of 89324978 is 87942398.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 63792169 + 25532809 = 7987^2 + 5053^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=6683.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89324971) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 547925 + ... + 548087.

Almost surely, 2^89324978 is an apocalyptic number.

89324978 is a deficient number, since it is larger than the sum of its proper divisors (48857899).

89324978 is an equidigital number, since it uses as much as digits as its factorization.

89324978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410 (or 206 counting only the distinct ones).

The product of its digits is 870912, while the sum is 50.

The square root of 89324978 is about 9451.1892373394. The cubic root of 89324978 is about 447.0172741632.

Multiplying 89324978 by its sum of digits (50), we get a square (4466248900 = 66830²).

The spelling of 89324978 in words is "eighty-nine million, three hundred twenty-four thousand, nine hundred seventy-eight".