89218904 has 8 divisors (see below), whose sum is σ = 167285460. Its totient is φ = 44609448.

The previous prime is 89218903. The next prime is 89218919. The reversal of 89218904 is 40981298.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×89218904² = 15920025661922432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89218901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5576174 + ... + 5576189.

Almost surely, 2^89218904 is an apocalyptic number.

It is an amenable number.

89218904 is a deficient number, since it is larger than the sum of its proper divisors (78066556).

89218904 is a wasteful number, since it uses less digits than its factorization.

89218904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11152369 (or 11152365 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 89218904 is about 9445.5758956244. The cubic root of 89218904 is about 446.8402587562.

The spelling of 89218904 in words is "eighty-nine million, two hundred eighteen thousand, nine hundred four".