91516073 has 16 divisors (see below), whose sum is σ = 101713920. Its totient is φ = 81648000.

The previous prime is 91516069. The next prime is 91516079. The reversal of 91516073 is 37061519.

It is a cyclic number.

It is not a de Polignac number, because 91516073 - 2² = 91516069 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91516079) 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, 151973 + ... + 152573.

It is an arithmetic number, because the mean of its divisors is an integer number (6357120).

Almost surely, 2^91516073 is an apocalyptic number.

It is an amenable number.

91516073 is a deficient number, since it is larger than the sum of its proper divisors (10197847).

91516073 is a wasteful number, since it uses less digits than its factorization.

91516073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848.

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 91516073 is about 9566.4033471310. The cubic root of 91516073 is about 450.6428228571.

The spelling of 91516073 in words is "ninety-one million, five hundred sixteen thousand, seventy-three".