91684396 has 12 divisors (see below), whose sum is σ = 160516552. Its totient is φ = 45822528.

The previous prime is 91684387. The next prime is 91684421. The reversal of 91684396 is 69348619.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12151 + ... + 18193.

Almost surely, 2^91684396 is an apocalyptic number.

It is an amenable number.

91684396 is a deficient number, since it is larger than the sum of its proper divisors (68832156).

91684396 is a wasteful number, since it uses less digits than its factorization.

91684396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9840 (or 9838 counting only the distinct ones).

The product of its digits is 279936, while the sum is 46.

The square root of 91684396 is about 9575.1969170352. The cubic root of 91684396 is about 450.9189386320.

The spelling of 91684396 in words is "ninety-one million, six hundred eighty-four thousand, three hundred ninety-six".