13887669 has 8 divisors (see below), whose sum is σ = 18556000. Its totient is φ = 9238896.

The previous prime is 13887641. The next prime is 13887677. The reversal of 13887669 is 96678831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13887669 - 2⁷ = 13887541 is a prime.

It is a super-2 number, since 2×13887669² = 385734700507122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13887169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3142 + ... + 6135.

It is an arithmetic number, because the mean of its divisors is an integer number (2319500).

Almost surely, 2^13887669 is an apocalyptic number.

It is an amenable number.

13887669 is a deficient number, since it is larger than the sum of its proper divisors (4668331).

13887669 is an equidigital number, since it uses as much as digits as its factorization.

13887669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9779.

The product of its digits is 435456, while the sum is 48.

The square root of 13887669 is about 3726.6162936369. The cubic root of 13887669 is about 240.3678906416.

The spelling of 13887669 in words is "thirteen million, eight hundred eighty-seven thousand, six hundred sixty-nine".