89813646 has 48 divisors (see below), whose sum is σ = 220605840. Its totient is φ = 26179200.

The previous prime is 89813639. The next prime is 89813671. The reversal of 89813646 is 64631898.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5655 + ... + 14546.

It is an arithmetic number, because the mean of its divisors is an integer number (4595955).

Almost surely, 2^89813646 is an apocalyptic number.

89813646 is an abundant number, since it is smaller than the sum of its proper divisors (130792194).

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

89813646 is a wasteful number, since it uses less digits than its factorization.

89813646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20241 (or 20238 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 89813646 is about 9477.0061728375. The cubic root of 89813646 is about 447.8309543708.

The spelling of 89813646 in words is "eighty-nine million, eight hundred thirteen thousand, six hundred forty-six".