90605800 has 24 divisors (see below), whose sum is σ = 210658950. Its totient is φ = 36242240.

The previous prime is 90605797. The next prime is 90605849. The reversal of 90605800 is 850609.

It can be written as a sum of positive squares in 3 ways, for example, as 88397604 + 2208196 = 9402^2 + 1486^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 226315 + ... + 226714.

Almost surely, 2^90605800 is an apocalyptic number.

It is an amenable number.

90605800 is an abundant number, since it is smaller than the sum of its proper divisors (120053150).

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

90605800 is a wasteful number, since it uses less digits than its factorization.

90605800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453045 (or 453036 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 90605800 is about 9518.7078955077. The cubic root of 90605800 is about 449.1437214656.

The spelling of 90605800 in words is "ninety million, six hundred five thousand, eight hundred".