90020684 has 12 divisors (see below), whose sum is σ = 169654464. Its totient is φ = 41547984.

The previous prime is 90020677. The next prime is 90020699. The reversal of 90020684 is 48602009.

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, 865532 + ... + 865635.

It is an arithmetic number, because the mean of its divisors is an integer number (14137872).

Almost surely, 2^90020684 is an apocalyptic number.

It is an amenable number.

90020684 is a deficient number, since it is larger than the sum of its proper divisors (79633780).

90020684 is a wasteful number, since it uses less digits than its factorization.

90020684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731184 (or 1731182 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 90020684 is about 9487.9230603963. The cubic root of 90020684 is about 448.1748029060.

The spelling of 90020684 in words is "ninety million, twenty thousand, six hundred eighty-four".