91967339 has 2 divisors, whose sum is σ = 91967340. Its totient is φ = 91967338.

The previous prime is 91967327. The next prime is 91967341. The reversal of 91967339 is 93376919.

It is a strong prime.

It is an emirp because it is prime and its reverse (93376919) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91967339 - 2¹² = 91963243 is a prime.

It is a super-3 number, since 3×91967339³ (a number of 25 digits) contains 333 as substring.

Together with 91967341, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 91967293 and 91967302.

It is not a weakly prime, because it can be changed into another prime (91967389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45983669 + 45983670.

It is an arithmetic number, because the mean of its divisors is an integer number (45983670).

Almost surely, 2^91967339 is an apocalyptic number.

91967339 is a deficient number, since it is larger than the sum of its proper divisors (1).

91967339 is an equidigital number, since it uses as much as digits as its factorization.

91967339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 275562, while the sum is 47.

The square root of 91967339 is about 9589.9603231713. The cubic root of 91967339 is about 451.3823156925.

The spelling of 91967339 in words is "ninety-one million, nine hundred sixty-seven thousand, three hundred thirty-nine".