90596820 has 24 divisors (see below), whose sum is σ = 253671264. Its totient is φ = 24159136.

The previous prime is 90596809. The next prime is 90596833. The reversal of 90596820 is 2869509.

It is a happy number.

It is a super-2 number, since 2×90596820² = 16415567588224800, which contains 22 as substring.

It is a congruent number.

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, 754914 + ... + 755033.

It is an arithmetic number, because the mean of its divisors is an integer number (10569636).

Almost surely, 2^90596820 is an apocalyptic number.

It is an amenable number.

90596820 is an abundant number, since it is smaller than the sum of its proper divisors (163074444).

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

90596820 is a wasteful number, since it uses less digits than its factorization.

90596820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1509959 (or 1509957 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 90596820 is about 9518.2361811420. The cubic root of 90596820 is about 449.1288826662.

The spelling of 90596820 in words is "ninety million, five hundred ninety-six thousand, eight hundred twenty".