13887837 has 18 divisors (see below), whose sum is σ = 20977502. Its totient is φ = 8852976.

The previous prime is 13887823. The next prime is 13887857. The reversal of 13887837 is 73878831.

13887837 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 13883076 + 4761 = 3726^2 + 69^2 .

It is not a de Polignac number, because 13887837 - 2⁴ = 13887821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13887792 and 13887801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13887817) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3303 + ... + 6219.

Almost surely, 2^13887837 is an apocalyptic number.

It is an amenable number.

13887837 is a deficient number, since it is larger than the sum of its proper divisors (7089665).

13887837 is a wasteful number, since it uses less digits than its factorization.

13887837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2969 (or 2943 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 13887837 is about 3726.6388341239. The cubic root of 13887837 is about 240.3688598862.

The spelling of 13887837 in words is "thirteen million, eight hundred eighty-seven thousand, eight hundred thirty-seven".