90099504 has 90 divisors (see below), whose sum is σ = 277214028. Its totient is φ = 27297600.

The previous prime is 90099481. The next prime is 90099511. The reversal of 90099504 is 40599009.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 14839 + ... + 20009.

Almost surely, 2^90099504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90099504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138607014).

90099504 is an abundant number, since it is smaller than the sum of its proper divisors (187114524).

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

90099504 is a wasteful number, since it uses less digits than its factorization.

90099504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5207 (or 5187 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 90099504 is about 9492.0758530471. The cubic root of 90099504 is about 448.3055685310.

The spelling of 90099504 in words is "ninety million, ninety-nine thousand, five hundred four".