91494227 has 4 divisors (see below), whose sum is σ = 99811896. Its totient is φ = 83176560.

The previous prime is 91494223. The next prime is 91494251. The reversal of 91494227 is 72249419.

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 91494227 - 2² = 91494223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91494223) 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, 4158818 + ... + 4158839.

It is an arithmetic number, because the mean of its divisors is an integer number (24952974).

Almost surely, 2^91494227 is an apocalyptic number.

91494227 is a deficient number, since it is larger than the sum of its proper divisors (8317669).

91494227 is a wasteful number, since it uses less digits than its factorization.

91494227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8317668.

The product of its digits is 36288, while the sum is 38.

The square root of 91494227 is about 9565.2614705506. The cubic root of 91494227 is about 450.6069620288.

The spelling of 91494227 in words is "ninety-one million, four hundred ninety-four thousand, two hundred twenty-seven".