91914959 has 2 divisors, whose sum is σ = 91914960. Its totient is φ = 91914958.

The previous prime is 91914943. The next prime is 91914997. The reversal of 91914959 is 95941919.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 91914959 - 2⁴ = 91914943 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91914059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45957479 + 45957480.

It is an arithmetic number, because the mean of its divisors is an integer number (45957480).

Almost surely, 2^91914959 is an apocalyptic number.

91914959 is a deficient number, since it is larger than the sum of its proper divisors (1).

91914959 is an equidigital number, since it uses as much as digits as its factorization.

91914959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 131220, while the sum is 47.

The square root of 91914959 is about 9587.2289531439. The cubic root of 91914959 is about 451.2966044821.

The spelling of 91914959 in words is "ninety-one million, nine hundred fourteen thousand, nine hundred fifty-nine".