91116473 has 16 divisors (see below), whose sum is σ = 108501120. Its totient is φ = 74889600.

The previous prime is 91116451. The next prime is 91116497. The reversal of 91116473 is 37461119.

It is a cyclic number.

It is not a de Polignac number, because 91116473 - 2¹⁸ = 90854329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91116373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14243 + ... + 19623.

It is an arithmetic number, because the mean of its divisors is an integer number (6781320).

Almost surely, 2^91116473 is an apocalyptic number.

It is an amenable number.

91116473 is a deficient number, since it is larger than the sum of its proper divisors (17384647).

91116473 is a wasteful number, since it uses less digits than its factorization.

91116473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5488.

The product of its digits is 4536, while the sum is 32.

The square root of 91116473 is about 9545.4949059753. The cubic root of 91116473 is about 449.9859633482.

The spelling of 91116473 in words is "ninety-one million, one hundred sixteen thousand, four hundred seventy-three".