13886909 has 8 divisors (see below), whose sum is σ = 14835960. Its totient is φ = 12952576.

The previous prime is 13886897. The next prime is 13886921. The reversal of 13886909 is 90968831.

It is an interprime number because it is at equal distance from previous prime (13886897) and next prime (13886921).

It can be written as a sum of positive squares in 4 ways, for example, as 4214809 + 9672100 = 2053^2 + 3110^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 13886909 - 2¹⁶ = 13821373 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13886909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13886989) 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, 1694 + ... + 5535.

It is an arithmetic number, because the mean of its divisors is an integer number (1854495).

Almost surely, 2^13886909 is an apocalyptic number.

It is an amenable number.

13886909 is a deficient number, since it is larger than the sum of its proper divisors (949051).

13886909 is a wasteful number, since it uses less digits than its factorization.

13886909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7359.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 13886909 is about 3726.5143230638. The cubic root of 13886909 is about 240.3635058662.

The spelling of 13886909 in words is "thirteen million, eight hundred eighty-six thousand, nine hundred nine".