90907488 has 96 divisors (see below), whose sum is σ = 303045120. Its totient is φ = 25971840.

The previous prime is 90907463. The next prime is 90907501. The reversal of 90907488 is 88470909.

It is a tau number, because it is divible by the number of its divisors (96).

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, 1468 + ... + 13563.

It is an arithmetic number, because the mean of its divisors is an integer number (3156720).

Almost surely, 2^90907488 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 90907488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151522560).

90907488 is an abundant number, since it is smaller than the sum of its proper divisors (212137632).

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

90907488 is a wasteful number, since it uses less digits than its factorization.

90907488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15057 (or 15043 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 90907488 is about 9534.5418348235. The cubic root of 90907488 is about 449.6416702976.

The spelling of 90907488 in words is "ninety million, nine hundred seven thousand, four hundred eighty-eight".