13687625 has 16 divisors (see below), whose sum is σ = 19523712. Its totient is φ = 9385200.

The previous prime is 13687591. The next prime is 13687627. The reversal of 13687625 is 52678631.

13687625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13687625 - 2¹² = 13683529 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13687627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6947 + ... + 8696.

It is an arithmetic number, because the mean of its divisors is an integer number (1220232).

Almost surely, 2^13687625 is an apocalyptic number.

It is an amenable number.

13687625 is a deficient number, since it is larger than the sum of its proper divisors (5836087).

13687625 is an equidigital number, since it uses as much as digits as its factorization.

13687625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15665 (or 15655 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

The square root of 13687625 is about 3699.6790401331. The cubic root of 13687625 is about 239.2081833067.

The spelling of 13687625 in words is "thirteen million, six hundred eighty-seven thousand, six hundred twenty-five".