91684132 has 12 divisors (see below), whose sum is σ = 161867916. Its totient is φ = 45436160.

The previous prime is 91684129. The next prime is 91684147. The reversal of 91684132 is 23148619.

It can be written as a sum of positive squares in 2 ways, for example, as 20214016 + 71470116 = 4496^2 + 8454^2 .

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, 100969 + ... + 101872.

It is an arithmetic number, because the mean of its divisors is an integer number (13488993).

Almost surely, 2^91684132 is an apocalyptic number.

It is an amenable number.

91684132 is a deficient number, since it is larger than the sum of its proper divisors (70183784).

91684132 is a wasteful number, since it uses less digits than its factorization.

91684132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202958 (or 202956 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 91684132 is about 9575.1831314080. The cubic root of 91684132 is about 450.9185058331.

The spelling of 91684132 in words is "ninety-one million, six hundred eighty-four thousand, one hundred thirty-two".