13987038 has 16 divisors (see below), whose sum is σ = 30126096. Its totient is φ = 4303680.

The previous prime is 13987007. The next prime is 13987049. The reversal of 13987038 is 83078931.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 13986987 and 13987005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89583 + ... + 89738.

It is an arithmetic number, because the mean of its divisors is an integer number (1882881).

Almost surely, 2^13987038 is an apocalyptic number.

13987038 is an abundant number, since it is smaller than the sum of its proper divisors (16139058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13987038 is a wasteful number, since it uses less digits than its factorization.

13987038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179339.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 13987038 is about 3739.9248655555. The cubic root of 13987038 is about 240.9398218691.

The spelling of 13987038 in words is "thirteen million, nine hundred eighty-seven thousand, thirty-eight".