13886997 has 4 divisors (see below), whose sum is σ = 18516000. Its totient is φ = 9257996.

The previous prime is 13886993. The next prime is 13887001. The reversal of 13886997 is 79968831.

13886997 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (13886993) and next prime (13887001).

It is a cyclic number.

It is not a de Polignac number, because 13886997 - 2² = 13886993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13886993) 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, 2314497 + ... + 2314502.

It is an arithmetic number, because the mean of its divisors is an integer number (4629000).

Almost surely, 2^13886997 is an apocalyptic number.

It is an amenable number.

13886997 is a deficient number, since it is larger than the sum of its proper divisors (4629003).

13886997 is an equidigital number, since it uses as much as digits as its factorization.

13886997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4629002.

The product of its digits is 653184, while the sum is 51.

The square root of 13886997 is about 3726.5261303257. The cubic root of 13886997 is about 240.3640135852.

It can be divided in two parts, 1388 and 6997, that added together give a triangular number (8385 = T₁₂₉).

The spelling of 13886997 in words is "thirteen million, eight hundred eighty-six thousand, nine hundred ninety-seven".