91475795 has 4 divisors (see below), whose sum is σ = 109770960. Its totient is φ = 73180632.

The previous prime is 91475777. The next prime is 91475833. The reversal of 91475795 is 59757419.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59757419 = 1181 ⋅50599.

It is a cyclic number.

It is not a de Polignac number, because 91475795 - 2⁶ = 91475731 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9147575 + ... + 9147584.

It is an arithmetic number, because the mean of its divisors is an integer number (27442740).

Almost surely, 2^91475795 is an apocalyptic number.

91475795 is a deficient number, since it is larger than the sum of its proper divisors (18295165).

91475795 is a wasteful number, since it uses less digits than its factorization.

91475795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18295164.

The product of its digits is 396900, while the sum is 47.

The square root of 91475795 is about 9564.2979355518. The cubic root of 91475795 is about 450.5767009380.

The spelling of 91475795 in words is "ninety-one million, four hundred seventy-five thousand, seven hundred ninety-five".