89899220 has 12 divisors (see below), whose sum is σ = 188788404. Its totient is φ = 35959680.

The previous prime is 89899211. The next prime is 89899231. The reversal of 89899220 is 2299898.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 23541904 + 66357316 = 4852^2 + 8146^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2247461 + ... + 2247500.

It is an arithmetic number, because the mean of its divisors is an integer number (15732367).

Almost surely, 2^89899220 is an apocalyptic number.

It is an amenable number.

89899220 is an abundant number, since it is smaller than the sum of its proper divisors (98889184).

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

89899220 is a wasteful number, since it uses less digits than its factorization.

89899220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4494970 (or 4494968 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 47.

The square root of 89899220 is about 9481.5199203503. The cubic root of 89899220 is about 447.9731395992.

The spelling of 89899220 in words is "eighty-nine million, eight hundred ninety-nine thousand, two hundred twenty".