91610716 has 12 divisors (see below), whose sum is σ = 163036440. Its totient is φ = 45028880.

The previous prime is 91610711. The next prime is 91610719. The reversal of 91610716 is 61701619.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91610711) by changing a digit.

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, 193855 + ... + 194326.

It is an arithmetic number, because the mean of its divisors is an integer number (13586370).

Almost surely, 2^91610716 is an apocalyptic number.

It is an amenable number.

91610716 is a deficient number, since it is larger than the sum of its proper divisors (71425724).

91610716 is a wasteful number, since it uses less digits than its factorization.

91610716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388244 (or 388242 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 91610716 is about 9571.3487032915. The cubic root of 91610716 is about 450.7981161415.

The spelling of 91610716 in words is "ninety-one million, six hundred ten thousand, seven hundred sixteen".