13696387 has 4 divisors (see below), whose sum is σ = 13717296. Its totient is φ = 13675480.

The previous prime is 13696367. The next prime is 13696409. The reversal of 13696387 is 78369631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13696387 - 2¹⁹ = 13172099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13696357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9439 + ... + 10792.

It is an arithmetic number, because the mean of its divisors is an integer number (3429324).

Almost surely, 2^13696387 is an apocalyptic number.

13696387 is a deficient number, since it is larger than the sum of its proper divisors (20909).

13696387 is an equidigital number, since it uses as much as digits as its factorization.

13696387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20908.

The product of its digits is 163296, while the sum is 43.

The square root of 13696387 is about 3700.8630074619. The cubic root of 13696387 is about 239.2592146831.

The spelling of 13696387 in words is "thirteen million, six hundred ninety-six thousand, three hundred eighty-seven".