90833388 has 12 divisors (see below), whose sum is σ = 211944600. Its totient is φ = 30277792.

The previous prime is 90833383. The next prime is 90833401. The reversal of 90833388 is 88333809.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (90833383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3784713 + ... + 3784736.

It is an arithmetic number, because the mean of its divisors is an integer number (17662050).

Almost surely, 2^90833388 is an apocalyptic number.

It is an amenable number.

90833388 is an abundant number, since it is smaller than the sum of its proper divisors (121111212).

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

90833388 is a wasteful number, since it uses less digits than its factorization.

90833388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7569456 (or 7569454 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 90833388 is about 9530.6551716028. The cubic root of 90833388 is about 449.5194672925.

The spelling of 90833388 in words is "ninety million, eight hundred thirty-three thousand, three hundred eighty-eight".