90833872 has 20 divisors (see below), whose sum is σ = 178113600. Its totient is φ = 44869088.

The previous prime is 90833867. The next prime is 90833879. The reversal of 90833872 is 27833809.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90833879) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 32872 + ... + 35527.

It is an arithmetic number, because the mean of its divisors is an integer number (8905680).

Almost surely, 2^90833872 is an apocalyptic number.

It is an amenable number.

90833872 is a deficient number, since it is larger than the sum of its proper divisors (87279728).

90833872 is a wasteful number, since it uses less digits than its factorization.

90833872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68490 (or 68484 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 90833872 is about 9530.6805633176. The cubic root of 90833872 is about 449.5202657032.

The spelling of 90833872 in words is "ninety million, eight hundred thirty-three thousand, eight hundred seventy-two".