90844928 has 54 divisors (see below), whose sum is σ = 191575944. Its totient is φ = 42988032.

The previous prime is 90844913. The next prime is 90844933. The reversal of 90844928 is 82944809.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 91925 + ... + 92907.

Almost surely, 2^90844928 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 90844928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95787972).

90844928 is an abundant number, since it is smaller than the sum of its proper divisors (100731016).

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

90844928 is an equidigital number, since it uses as much as digits as its factorization.

90844928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037 (or 1004 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 90844928 is about 9531.2605672073. The cubic root of 90844928 is about 449.5385030058.

The spelling of 90844928 in words is "ninety million, eight hundred forty-four thousand, nine hundred twenty-eight".