91967327 has 2 divisors, whose sum is σ = 91967328. Its totient is φ = 91967326.

The previous prime is 91967273. The next prime is 91967339. The reversal of 91967327 is 72376919.

It is a happy number.

Together with previous prime (91967273) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 91967327 - 2¹² = 91963231 is a prime.

It is a super-3 number, since 3×91967327³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91967377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45983663 + 45983664.

It is an arithmetic number, because the mean of its divisors is an integer number (45983664).

Almost surely, 2^91967327 is an apocalyptic number.

91967327 is a deficient number, since it is larger than the sum of its proper divisors (1).

91967327 is an equidigital number, since it uses as much as digits as its factorization.

91967327 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 142884, while the sum is 44.

The square root of 91967327 is about 9589.9596975170. The cubic root of 91967327 is about 451.3822960602.

The spelling of 91967327 in words is "ninety-one million, nine hundred sixty-seven thousand, three hundred twenty-seven".