89413640 has 16 divisors (see below), whose sum is σ = 201180780. Its totient is φ = 35765440.

The previous prime is 89413633. The next prime is 89413669. The reversal of 89413640 is 4631498.

It can be written as a sum of positive squares in 2 ways, for example, as 76352644 + 13060996 = 8738^2 + 3614^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 89413640.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1117631 + ... + 1117710.

Almost surely, 2^89413640 is an apocalyptic number.

It is an amenable number.

89413640 is an abundant number, since it is smaller than the sum of its proper divisors (111767140).

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

89413640 is a wasteful number, since it uses less digits than its factorization.

89413640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235352 (or 2235348 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 89413640 is about 9455.8785948213. The cubic root of 89413640 is about 447.1651250801.

The spelling of 89413640 in words is "eighty-nine million, four hundred thirteen thousand, six hundred forty".