13679615 has 4 divisors (see below), whose sum is σ = 16415544. Its totient is φ = 10943688.

The previous prime is 13679599. The next prime is 13679621. The reversal of 13679615 is 51697631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51697631 = 53 ⋅975427.

It is a cyclic number.

It is not a de Polignac number, because 13679615 - 2⁴ = 13679599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1367957 + ... + 1367966.

It is an arithmetic number, because the mean of its divisors is an integer number (4103886).

Almost surely, 2^13679615 is an apocalyptic number.

13679615 is a deficient number, since it is larger than the sum of its proper divisors (2735929).

13679615 is an equidigital number, since it uses as much as digits as its factorization.

13679615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2735928.

The product of its digits is 34020, while the sum is 38.

The square root of 13679615 is about 3698.5963553759. The cubic root of 13679615 is about 239.1615126479.

The spelling of 13679615 in words is "thirteen million, six hundred seventy-nine thousand, six hundred fifteen".