90911832 has 32 divisors (see below), whose sum is σ = 247942080. Its totient is φ = 27548960.

The previous prime is 90911819. The next prime is 90911833. The reversal of 90911832 is 23811909.

It is a super-2 number, since 2×90911832² = 16529922395192448, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 90911793 and 90911802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90911833) by changing a digit.

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, 171918 + ... + 172445.

It is an arithmetic number, because the mean of its divisors is an integer number (7748190).

Almost surely, 2^90911832 is an apocalyptic number.

It is an amenable number.

90911832 is an abundant number, since it is smaller than the sum of its proper divisors (157030248).

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

90911832 is a wasteful number, since it uses less digits than its factorization.

90911832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344383 (or 344379 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 90911832 is about 9534.7696353924. The cubic root of 90911832 is about 449.6488322023.

The spelling of 90911832 in words is "ninety million, nine hundred eleven thousand, eight hundred thirty-two".