90207488 has 72 divisors (see below), whose sum is σ = 208978560. Its totient is φ = 38062080.

The previous prime is 90207479. The next prime is 90207511. The reversal of 90207488 is 88470209.

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, 126878 + ... + 127586.

It is an arithmetic number, because the mean of its divisors is an integer number (2902480).

Almost surely, 2^90207488 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 90207488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104489280).

90207488 is an abundant number, since it is smaller than the sum of its proper divisors (118771072).

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

90207488 is an equidigital number, since it uses as much as digits as its factorization.

90207488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803 (or 789 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 90207488 is about 9497.7622627648. The cubic root of 90207488 is about 448.4845946800.

The spelling of 90207488 in words is "ninety million, two hundred seven thousand, four hundred eighty-eight".