90914772 has 96 divisors (see below), whose sum is σ = 247273600. Its totient is φ = 25754112.

The previous prime is 90914767. The next prime is 90914783. The reversal of 90914772 is 27741909.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 90914772.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109254 + ... + 110082.

Almost surely, 2^90914772 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 90914772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123636800).

90914772 is an abundant number, since it is smaller than the sum of its proper divisors (156358828).

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

90914772 is a wasteful number, since it uses less digits than its factorization.

90914772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905 (or 903 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 90914772 is about 9534.9238067223. The cubic root of 90914772 is about 449.6536792183.

The spelling of 90914772 in words is "ninety million, nine hundred fourteen thousand, seven hundred seventy-two".