13199687 has 2 divisors, whose sum is σ = 13199688. Its totient is φ = 13199686.

The previous prime is 13199671. The next prime is 13199689. The reversal of 13199687 is 78699131.

13199687 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13199687 - 2⁴ = 13199671 is a prime.

Together with 13199689, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13199689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6599843 + 6599844.

It is an arithmetic number, because the mean of its divisors is an integer number (6599844).

Almost surely, 2^13199687 is an apocalyptic number.

13199687 is a deficient number, since it is larger than the sum of its proper divisors (1).

13199687 is an equidigital number, since it uses as much as digits as its factorization.

13199687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 44.

The square root of 13199687 is about 3633.1373494543. The cubic root of 13199687 is about 236.3312820920.

The spelling of 13199687 in words is "thirteen million, one hundred ninety-nine thousand, six hundred eighty-seven".