90791936 has 28 divisors (see below), whose sum is σ = 181589172. Its totient is φ = 45391872.

The previous prime is 90791923. The next prime is 90791941. The reversal of 90791936 is 63919709.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2651 + ... + 13733.

Almost surely, 2^90791936 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 90791936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90794586).

90791936 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.

90791936 is an equidigital number, since it uses as much as digits as its factorization.

90791936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11109 (or 11085 counting only the distinct ones).

The product of its (nonzero) digits is 91854, while the sum is 44.

The square root of 90791936 is about 9528.4802565782. The cubic root of 90791936 is about 449.4510771826.

The spelling of 90791936 in words is "ninety million, seven hundred ninety-one thousand, nine hundred thirty-six".