91904795 has 4 divisors (see below), whose sum is σ = 110285760. Its totient is φ = 73523832.

The previous prime is 91904783. The next prime is 91904797. The reversal of 91904795 is 59740919.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 91904795 - 2²⁰ = 90856219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91904797) 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, 9190475 + ... + 9190484.

It is an arithmetic number, because the mean of its divisors is an integer number (27571440).

Almost surely, 2^91904795 is an apocalyptic number.

91904795 is a deficient number, since it is larger than the sum of its proper divisors (18380965).

91904795 is a wasteful number, since it uses less digits than its factorization.

91904795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18380964.

The product of its (nonzero) digits is 102060, while the sum is 44.

The square root of 91904795 is about 9586.6988583141. The cubic root of 91904795 is about 451.2799690043.

The spelling of 91904795 in words is "ninety-one million, nine hundred four thousand, seven hundred ninety-five".