90549804 has 48 divisors (see below), whose sum is σ = 226453248. Its totient is φ = 28087488.

The previous prime is 90549799. The next prime is 90549817. The reversal of 90549804 is 40894509.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5779 + ... + 14645.

It is an arithmetic number, because the mean of its divisors is an integer number (4717776).

Almost surely, 2^90549804 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 90549804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113226624).

90549804 is an abundant number, since it is smaller than the sum of its proper divisors (135903444).

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

90549804 is a wasteful number, since it uses less digits than its factorization.

90549804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8934 (or 8932 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 90549804 is about 9515.7660753089. The cubic root of 90549804 is about 449.0511761219.

The spelling of 90549804 in words is "ninety million, five hundred forty-nine thousand, eight hundred four".