13267691 has 2 divisors, whose sum is σ = 13267692. Its totient is φ = 13267690.

The previous prime is 13267673. The next prime is 13267697. The reversal of 13267691 is 19676231.

It is a strong prime.

It is an emirp because it is prime and its reverse (19676231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13267691 - 2⁶ = 13267627 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13267697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6633845 + 6633846.

It is an arithmetic number, because the mean of its divisors is an integer number (6633846).

Almost surely, 2^13267691 is an apocalyptic number.

13267691 is a deficient number, since it is larger than the sum of its proper divisors (1).

13267691 is an equidigital number, since it uses as much as digits as its factorization.

13267691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 35.

The square root of 13267691 is about 3642.4841797872. The cubic root of 13267691 is about 236.7364419890.

The spelling of 13267691 in words is "thirteen million, two hundred sixty-seven thousand, six hundred ninety-one".