91350668 has 12 divisors (see below), whose sum is σ = 161660520. Its totient is φ = 45161952.

The previous prime is 91350653. The next prime is 91350671. The reversal of 91350668 is 86605319.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127946 + ... + 128657.

It is an arithmetic number, because the mean of its divisors is an integer number (13471710).

Almost surely, 2^91350668 is an apocalyptic number.

It is an amenable number.

91350668 is a deficient number, since it is larger than the sum of its proper divisors (70309852).

91350668 is a wasteful number, since it uses less digits than its factorization.

91350668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256696 (or 256694 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 91350668 is about 9557.7543387555. The cubic root of 91350668 is about 450.3711637357.

The spelling of 91350668 in words is "ninety-one million, three hundred fifty thousand, six hundred sixty-eight".