90299884 has 6 divisors (see below), whose sum is σ = 158024804. Its totient is φ = 45149940.

The previous prime is 90299873. The next prime is 90299887. The reversal of 90299884 is 48899209.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (90299887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11287482 + ... + 11287489.

Almost surely, 2^90299884 is an apocalyptic number.

It is an amenable number.

90299884 is a deficient number, since it is larger than the sum of its proper divisors (67724920).

90299884 is a wasteful number, since it uses less digits than its factorization.

90299884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22574975 (or 22574973 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 49.

The square root of 90299884 is about 9502.6251109891. The cubic root of 90299884 is about 448.6376641710.

The spelling of 90299884 in words is "ninety million, two hundred ninety-nine thousand, eight hundred eighty-four".