90532872 has 48 divisors (see below), whose sum is σ = 258102000. Its totient is φ = 28588896.

The previous prime is 90532859. The next prime is 90532873. The reversal of 90532872 is 27823509.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (90532873) 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 11 ways as a sum of consecutive naturals, for example, 31722 + ... + 34457.

It is an arithmetic number, because the mean of its divisors is an integer number (5377125).

Almost surely, 2^90532872 is an apocalyptic number.

It is an amenable number.

90532872 is an abundant number, since it is smaller than the sum of its proper divisors (167569128).

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

90532872 is a wasteful number, since it uses less digits than its factorization.

90532872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66210 (or 66203 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 90532872 is about 9514.8763523232. The cubic root of 90532872 is about 449.0231848650.

The spelling of 90532872 in words is "ninety million, five hundred thirty-two thousand, eight hundred seventy-two".