90944856 has 80 divisors (see below), whose sum is σ = 256132800. Its totient is φ = 30148416.

The previous prime is 90944851. The next prime is 90944857. The reversal of 90944856 is 65844909.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90944851) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 189625 + ... + 190103.

It is an arithmetic number, because the mean of its divisors is an integer number (3201660).

Almost surely, 2^90944856 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 90944856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128066400).

90944856 is an abundant number, since it is smaller than the sum of its proper divisors (165187944).

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

90944856 is a wasteful number, since it uses less digits than its factorization.

90944856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790 (or 777 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 90944856 is about 9536.5012452157. The cubic root of 90944856 is about 449.7032710473.

The spelling of 90944856 in words is "ninety million, nine hundred forty-four thousand, eight hundred fifty-six".