91945267 has 2 divisors, whose sum is σ = 91945268. Its totient is φ = 91945266.

The previous prime is 91945253. The next prime is 91945289. The reversal of 91945267 is 76254919.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91945267 is a prime.

It is not a weakly prime, because it can be changed into another prime (91945297) 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, 45972633 + 45972634.

It is an arithmetic number, because the mean of its divisors is an integer number (45972634).

Almost surely, 2^91945267 is an apocalyptic number.

91945267 is a deficient number, since it is larger than the sum of its proper divisors (1).

91945267 is an equidigital number, since it uses as much as digits as its factorization.

91945267 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 43.

The square root of 91945267 is about 9588.8094672905. The cubic root of 91945267 is about 451.3462024820.

The spelling of 91945267 in words is "ninety-one million, nine hundred forty-five thousand, two hundred sixty-seven".