91766005 has 16 divisors (see below), whose sum is σ = 115372800. Its totient is φ = 69975360.

The previous prime is 91765997. The next prime is 91766011. The reversal of 91766005 is 50066719.

It is not a de Polignac number, because 91766005 - 2³ = 91765997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7450 + ... + 15460.

It is an arithmetic number, because the mean of its divisors is an integer number (7210800).

Almost surely, 2^91766005 is an apocalyptic number.

It is an amenable number.

91766005 is a deficient number, since it is larger than the sum of its proper divisors (23606795).

91766005 is a wasteful number, since it uses less digits than its factorization.

91766005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8124.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 91766005 is about 9579.4574481022. The cubic root of 91766005 is about 451.0526877841.

The spelling of 91766005 in words is "ninety-one million, seven hundred sixty-six thousand, five".