91516883 has 2 divisors, whose sum is σ = 91516884. Its totient is φ = 91516882.

The previous prime is 91516861. The next prime is 91516891. The reversal of 91516883 is 38861519.

It is a strong prime.

91516883 is a truncatable prime.

It is an emirp because it is prime and its reverse (38861519) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91516883 - 2¹⁰ = 91515859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 91516883.

It is not a weakly prime, because it can be changed into another prime (91516583) by changing a digit.

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 as a sum of consecutive naturals, namely, 45758441 + 45758442.

It is an arithmetic number, because the mean of its divisors is an integer number (45758442).

Almost surely, 2^91516883 is an apocalyptic number.

91516883 is a deficient number, since it is larger than the sum of its proper divisors (1).

91516883 is an equidigital number, since it uses as much as digits as its factorization.

91516883 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 41.

The square root of 91516883 is about 9566.4456826974. The cubic root of 91516883 is about 450.6441523854.

The spelling of 91516883 in words is "ninety-one million, five hundred sixteen thousand, eight hundred eighty-three".