91613063 has 2 divisors, whose sum is σ = 91613064. Its totient is φ = 91613062.

The previous prime is 91613021. The next prime is 91613087. The reversal of 91613063 is 36031619.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 91613063 - 2¹⁰ = 91612039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91613563) 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, 45806531 + 45806532.

It is an arithmetic number, because the mean of its divisors is an integer number (45806532).

Almost surely, 2^91613063 is an apocalyptic number.

91613063 is a deficient number, since it is larger than the sum of its proper divisors (1).

91613063 is an equidigital number, since it uses as much as digits as its factorization.

91613063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 91613063 is about 9571.4713080069. The cubic root of 91613063 is about 450.8019658154.

The spelling of 91613063 in words is "ninety-one million, six hundred thirteen thousand, sixty-three".