91668368 has 40 divisors (see below), whose sum is σ = 194291136. Its totient is φ = 41552000.

The previous prime is 91668341. The next prime is 91668373. The reversal of 91668368 is 86386619.

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, 123005 + ... + 123747.

Almost surely, 2^91668368 is an apocalyptic number.

It is an amenable number.

91668368 is an abundant number, since it is smaller than the sum of its proper divisors (102622768).

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

91668368 is a wasteful number, since it uses less digits than its factorization.

91668368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463 (or 1457 counting only the distinct ones).

The product of its digits is 373248, while the sum is 47.

The square root of 91668368 is about 9574.3599263867. The cubic root of 91668368 is about 450.8926609873.

The spelling of 91668368 in words is "ninety-one million, six hundred sixty-eight thousand, three hundred sixty-eight".