13684860 has 72 divisors (see below), whose sum is σ = 47445216. Its totient is φ = 3127680.

The previous prime is 13684859. The next prime is 13684871. The reversal of 13684860 is 6848631.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4171 + ... + 6690.

Almost surely, 2^13684860 is an apocalyptic number.

13684860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13684860 is an abundant number, since it is smaller than the sum of its proper divisors (33760356).

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

13684860 is a wasteful number, since it uses less digits than its factorization.

13684860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10883 (or 10878 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 13684860 is about 3699.3053401956. The cubic root of 13684860 is about 239.1920749566.

The spelling of 13684860 in words is "thirteen million, six hundred eighty-four thousand, eight hundred sixty".