90961488 has 80 divisors (see below), whose sum is σ = 262483200. Its totient is φ = 30159360.

The previous prime is 90961447. The next prime is 90961499. The reversal of 90961488 is 88416909.

It is a congruent number.

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, 102808 + ... + 103688.

It is an arithmetic number, because the mean of its divisors is an integer number (3281040).

Almost surely, 2^90961488 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 90961488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131241600).

90961488 is an abundant number, since it is smaller than the sum of its proper divisors (171521712).

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

90961488 is a wasteful number, since it uses less digits than its factorization.

90961488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137 (or 1125 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 90961488 is about 9537.3732232727. The cubic root of 90961488 is about 449.7306832955.

The spelling of 90961488 in words is "ninety million, nine hundred sixty-one thousand, four hundred eighty-eight".