91584132 has 12 divisors (see below), whose sum is σ = 213696336. Its totient is φ = 30528040.

The previous prime is 91584079. The next prime is 91584167. The reversal of 91584132 is 23148519.

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

It is a junction number, because it is equal to n+sod(n) for n = 91584093 and 91584102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3815994 + ... + 3816017.

It is an arithmetic number, because the mean of its divisors is an integer number (17808028).

Almost surely, 2^91584132 is an apocalyptic number.

It is an amenable number.

91584132 is an abundant number, since it is smaller than the sum of its proper divisors (122112204).

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

91584132 is a wasteful number, since it uses less digits than its factorization.

91584132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7632018 (or 7632016 counting only the distinct ones).

The product of its digits is 8640, while the sum is 33.

The square root of 91584132 is about 9569.9598745240. The cubic root of 91584132 is about 450.7545070638.

The spelling of 91584132 in words is "ninety-one million, five hundred eighty-four thousand, one hundred thirty-two".