91816716 has 24 divisors (see below), whose sum is σ = 214466560. Its totient is φ = 30573072.

The previous prime is 91816687. The next prime is 91816729. The reversal of 91816716 is 61761819.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9525 + ... + 16563.

Almost surely, 2^91816716 is an apocalyptic number.

It is an amenable number.

91816716 is an abundant number, since it is smaller than the sum of its proper divisors (122649844).

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

91816716 is a wasteful number, since it uses less digits than its factorization.

91816716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8133 (or 8131 counting only the distinct ones).

The product of its digits is 18144, while the sum is 39.

The square root of 91816716 is about 9582.1039443329. The cubic root of 91816716 is about 451.1357582007.

The spelling of 91816716 in words is "ninety-one million, eight hundred sixteen thousand, seven hundred sixteen".