13684872 has 48 divisors (see below), whose sum is σ = 35011440. Its totient is φ = 4457088.

The previous prime is 13684871. The next prime is 13684877. The reversal of 13684872 is 27848631.

It is a self number, because there is not a number n which added to its sum of digits gives 13684872.

It is not an unprimeable number, because it can be changed into a prime (13684871) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127843 + ... + 127949.

It is an arithmetic number, because the mean of its divisors is an integer number (729405).

Almost surely, 2^13684872 is an apocalyptic number.

13684872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13684872 is an abundant number, since it is smaller than the sum of its proper divisors (21326568).

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

13684872 is a wasteful number, since it uses less digits than its factorization.

13684872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262 (or 185 counting only the distinct ones).

The product of its digits is 64512, while the sum is 39.

The square root of 13684872 is about 3699.3069621214. The cubic root of 13684872 is about 239.1921448709.

The spelling of 13684872 in words is "thirteen million, six hundred eighty-four thousand, eight hundred seventy-two".