90489522 has 8 divisors (see below), whose sum is σ = 180979056. Its totient is φ = 30163172.

The previous prime is 90489499. The next prime is 90489547. The reversal of 90489522 is 22598409.

It is a sphenic number, since it is the product of 3 distinct primes.

90489522 is an admirable number.

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, 7540788 + ... + 7540799.

It is an arithmetic number, because the mean of its divisors is an integer number (22622382).

Almost surely, 2^90489522 is an apocalyptic number.

90489522 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

90489522 is a wasteful number, since it uses less digits than its factorization.

90489522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15081592.

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

The square root of 90489522 is about 9512.5980678256. The cubic root of 90489522 is about 448.9515045928.

The spelling of 90489522 in words is "ninety million, four hundred eighty-nine thousand, five hundred twenty-two".