91416984 has 32 divisors (see below), whose sum is σ = 228960000. Its totient is φ = 30416672.

The previous prime is 91416967. The next prime is 91416991. The reversal of 91416984 is 48961419.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11197 + ... + 17555.

It is an arithmetic number, because the mean of its divisors is an integer number (7155000).

Almost surely, 2^91416984 is an apocalyptic number.

It is an amenable number.

91416984 is an abundant number, since it is smaller than the sum of its proper divisors (137543016).

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

91416984 is a wasteful number, since it uses less digits than its factorization.

91416984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6967 (or 6963 counting only the distinct ones).

The product of its digits is 62208, while the sum is 42.

The square root of 91416984 is about 9561.2229343322. Note that the first 3 decimals coincide. The cubic root of 91416984 is about 450.4801196613.

The spelling of 91416984 in words is "ninety-one million, four hundred sixteen thousand, nine hundred eighty-four".