90908312 has 32 divisors (see below), whose sum is σ = 195739200. Its totient is φ = 39146400.

The previous prime is 90908269. The next prime is 90908413. The reversal of 90908312 is 21380909.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25514 + ... + 28857.

It is an arithmetic number, because the mean of its divisors is an integer number (6116850).

Almost surely, 2^90908312 is an apocalyptic number.

It is an amenable number.

90908312 is an abundant number, since it is smaller than the sum of its proper divisors (104830888).

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

90908312 is a wasteful number, since it uses less digits than its factorization.

90908312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54407 (or 54403 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 90908312 is about 9534.5850460311. The cubic root of 90908312 is about 449.6430288348.

The spelling of 90908312 in words is "ninety million, nine hundred eight thousand, three hundred twelve".