91382168 has 16 divisors (see below), whose sum is σ = 171507480. Its totient is φ = 45646848.

The previous prime is 91382167. The next prime is 91382189. The reversal of 91382168 is 86128319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91382167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4271 + ... + 14177.

Almost surely, 2^91382168 is an apocalyptic number.

It is an amenable number.

91382168 is a deficient number, since it is larger than the sum of its proper divisors (80125312).

91382168 is a wasteful number, since it uses less digits than its factorization.

91382168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11066 (or 11062 counting only the distinct ones).

The product of its digits is 20736, while the sum is 38.

The square root of 91382168 is about 9559.4020733517. The cubic root of 91382168 is about 450.4229242087.

The spelling of 91382168 in words is "ninety-one million, three hundred eighty-two thousand, one hundred sixty-eight".