13208685 has 24 divisors (see below), whose sum is σ = 24585696. Its totient is φ = 6037920.

The previous prime is 13208669. The next prime is 13208719. The reversal of 13208685 is 58680231.

It is a happy number.

13208685 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13208685 - 2⁴ = 13208669 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8251 + ... + 9720.

It is an arithmetic number, because the mean of its divisors is an integer number (1024404).

Almost surely, 2^13208685 is an apocalyptic number.

13208685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13208685 is a deficient number, since it is larger than the sum of its proper divisors (11377011).

13208685 is a wasteful number, since it uses less digits than its factorization.

13208685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17993 (or 17986 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 13208685 is about 3634.3754621668. The cubic root of 13208685 is about 236.3849708867.

The spelling of 13208685 in words is "thirteen million, two hundred eight thousand, six hundred eighty-five".