13686830 has 8 divisors (see below), whose sum is σ = 24636312. Its totient is φ = 5474728.

The previous prime is 13686809. The next prime is 13686833. The reversal of 13686830 is 3868631.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13686833) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 684332 + ... + 684351.

It is an arithmetic number, because the mean of its divisors is an integer number (3079539).

Almost surely, 2^13686830 is an apocalyptic number.

13686830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13686830 is a deficient number, since it is larger than the sum of its proper divisors (10949482).

13686830 is a wasteful number, since it uses less digits than its factorization.

13686830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368690.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 13686830 is about 3699.5715968204. The cubic root of 13686830 is about 239.2035520142.

The spelling of 13686830 in words is "thirteen million, six hundred eighty-six thousand, eight hundred thirty".