91968316 has 24 divisors (see below), whose sum is σ = 177698304. Its totient is φ = 41298480.

The previous prime is 91968307. The next prime is 91968323. The reversal of 91968316 is 61386919.

It is a super-3 number, since 3×91968316³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 8940 + ... + 16243.

It is an arithmetic number, because the mean of its divisors is an integer number (7404096).

Almost surely, 2^91968316 is an apocalyptic number.

It is an amenable number.

91968316 is a deficient number, since it is larger than the sum of its proper divisors (85729988).

91968316 is a wasteful number, since it uses less digits than its factorization.

91968316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25281 (or 25279 counting only the distinct ones).

The product of its digits is 69984, while the sum is 43.

The square root of 91968316 is about 9590.0112617244. The cubic root of 91968316 is about 451.3839140822.

The spelling of 91968316 in words is "ninety-one million, nine hundred sixty-eight thousand, three hundred sixteen".