90838825 has 24 divisors (see below), whose sum is σ = 140437440. Its totient is φ = 56625600.

The previous prime is 90838807. The next prime is 90838831. The reversal of 90838825 is 52883809.

It is not a de Polignac number, because 90838825 - 2⁵ = 90838793 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

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 23 ways as a sum of consecutive naturals, for example, 21670 + ... + 25519.

It is an arithmetic number, because the mean of its divisors is an integer number (5851560).

Almost surely, 2^90838825 is an apocalyptic number.

It is an amenable number.

90838825 is a deficient number, since it is larger than the sum of its proper divisors (49598615).

90838825 is a wasteful number, since it uses less digits than its factorization.

90838825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47217 (or 47212 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 90838825 is about 9530.9404048079. The cubic root of 90838825 is about 449.5284360525.

The spelling of 90838825 in words is "ninety million, eight hundred thirty-eight thousand, eight hundred twenty-five".