91914827 has 2 divisors, whose sum is σ = 91914828. Its totient is φ = 91914826.

The previous prime is 91914793. The next prime is 91914829. The reversal of 91914827 is 72841919.

It is a strong prime.

It is an emirp because it is prime and its reverse (72841919) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91914827 - 2⁶ = 91914763 is a prime.

Together with 91914829, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (91914829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45957413 + 45957414.

It is an arithmetic number, because the mean of its divisors is an integer number (45957414).

Almost surely, 2^91914827 is an apocalyptic number.

91914827 is a deficient number, since it is larger than the sum of its proper divisors (1).

91914827 is an equidigital number, since it uses as much as digits as its factorization.

91914827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 41.

The square root of 91914827 is about 9587.2220689833. Note that the first 3 decimals coincide. The cubic root of 91914827 is about 451.2963884448.

The spelling of 91914827 in words is "ninety-one million, nine hundred fourteen thousand, eight hundred twenty-seven".