89400858 has 16 divisors (see below), whose sum is σ = 189319680. Its totient is φ = 28047296.

The previous prime is 89400853. The next prime is 89400859. The reversal of 89400858 is 85800498.

It is a super-2 number, since 2×89400858² = 15985026822272328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (89400851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438138 + ... + 438341.

It is an arithmetic number, because the mean of its divisors is an integer number (11832480).

Almost surely, 2^89400858 is an apocalyptic number.

89400858 is an abundant number, since it is smaller than the sum of its proper divisors (99918822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89400858 is a wasteful number, since it uses less digits than its factorization.

89400858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876501.

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 89400858 is about 9455.2026948131. The cubic root of 89400858 is about 447.1438161128.

The spelling of 89400858 in words is "eighty-nine million, four hundred thousand, eight hundred fifty-eight".