91063499 has 2 divisors, whose sum is σ = 91063500. Its totient is φ = 91063498.

The previous prime is 91063493. The next prime is 91063513. The reversal of 91063499 is 99436019.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 91063499 - 2⁸ = 91063243 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (91063493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45531749 + 45531750.

It is an arithmetic number, because the mean of its divisors is an integer number (45531750).

Almost surely, 2^91063499 is an apocalyptic number.

91063499 is a deficient number, since it is larger than the sum of its proper divisors (1).

91063499 is an equidigital number, since it uses as much as digits as its factorization.

91063499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 91063499 is about 9542.7196857081. The cubic root of 91063499 is about 449.8987410024.

The spelling of 91063499 in words is "ninety-one million, sixty-three thousand, four hundred ninety-nine".