89391408 has 40 divisors (see below), whose sum is σ = 237173808. Its totient is φ = 28991232.

The previous prime is 89391377. The next prime is 89391473. The reversal of 89391408 is 80419398.

It is a self number, because there is not a number n which added to its sum of digits gives 89391408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23391 + ... + 26942.

Almost surely, 2^89391408 is an apocalyptic number.

It is an amenable number.

89391408 is an abundant number, since it is smaller than the sum of its proper divisors (147782400).

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

89391408 is a wasteful number, since it uses less digits than its factorization.

89391408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50381 (or 50375 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 89391408 is about 9454.7029567301. The cubic root of 89391408 is about 447.1280606415.

The spelling of 89391408 in words is "eighty-nine million, three hundred ninety-one thousand, four hundred eight".