90053998 has 16 divisors (see below), whose sum is σ = 143226144. Its totient is φ = 42319360.

The previous prime is 90053983. The next prime is 90054011. The reversal of 90053998 is 89935009.

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, 31863 + ... + 34573.

It is an arithmetic number, because the mean of its divisors is an integer number (8951634).

Almost surely, 2^90053998 is an apocalyptic number.

90053998 is a deficient number, since it is larger than the sum of its proper divisors (53172146).

90053998 is a wasteful number, since it uses less digits than its factorization.

90053998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3707.

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 90053998 is about 9489.6784982422. The cubic root of 90053998 is about 448.2300815128.

The spelling of 90053998 in words is "ninety million, fifty-three thousand, nine hundred ninety-eight".