91684896 has 24 divisors (see below), whose sum is σ = 240673104. Its totient is φ = 30561600.

The previous prime is 91684867. The next prime is 91684903. The reversal of 91684896 is 69848619.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×91684896² = 16812240309061632, which contains 22 as substring.

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, 477430 + ... + 477621.

It is an arithmetic number, because the mean of its divisors is an integer number (10028046).

Almost surely, 2^91684896 is an apocalyptic number.

91684896 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

91684896 is an abundant number, since it is smaller than the sum of its proper divisors (148988208).

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

91684896 is a wasteful number, since it uses less digits than its factorization.

91684896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955064 (or 955056 counting only the distinct ones).

The product of its digits is 746496, while the sum is 51.

The square root of 91684896 is about 9575.2230261232. The cubic root of 91684896 is about 450.9197583246.

The spelling of 91684896 in words is "ninety-one million, six hundred eighty-four thousand, eight hundred ninety-six".