91304368 has 20 divisors (see below), whose sum is σ = 177054640. Its totient is φ = 45612864.

The previous prime is 91304341. The next prime is 91304371. The reversal of 91304368 is 86340319.

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, 28546 + ... + 31582.

It is an arithmetic number, because the mean of its divisors is an integer number (8852732).

Almost surely, 2^91304368 is an apocalyptic number.

It is an amenable number.

91304368 is a deficient number, since it is larger than the sum of its proper divisors (85750272).

91304368 is a wasteful number, since it uses less digits than its factorization.

91304368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4924 (or 4918 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 91304368 is about 9555.3319146956. The cubic root of 91304368 is about 450.2950624540.

The spelling of 91304368 in words is "ninety-one million, three hundred four thousand, three hundred sixty-eight".