13699393 has 2 divisors, whose sum is σ = 13699394. Its totient is φ = 13699392.

The previous prime is 13699381. The next prime is 13699403. The reversal of 13699393 is 39399631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11716929 + 1982464 = 3423^2 + 1408^2 .

It is an emirp because it is prime and its reverse (39399631) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13699393 is a prime.

It is not a weakly prime, because it can be changed into another prime (13699313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6849696 + 6849697.

It is an arithmetic number, because the mean of its divisors is an integer number (6849697).

Almost surely, 2^13699393 is an apocalyptic number.

It is an amenable number.

13699393 is a deficient number, since it is larger than the sum of its proper divisors (1).

13699393 is an equidigital number, since it uses as much as digits as its factorization.

13699393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 118098, while the sum is 43.

The square root of 13699393 is about 3701.2691066714. The cubic root of 13699393 is about 239.2767171234.

The spelling of 13699393 in words is "thirteen million, six hundred ninety-nine thousand, three hundred ninety-three".