13679965 has 8 divisors (see below), whose sum is σ = 17678808. Its totient is φ = 10102080.

The previous prime is 13679947. The next prime is 13679969. The reversal of 13679965 is 56997631.

It can be written as a sum of positive squares in 4 ways, for example, as 4761 + 13675204 = 69^2 + 3698^2 .

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

It is not a de Polignac number, because 13679965 - 2⁵ = 13679933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13679969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105166 + ... + 105295.

It is an arithmetic number, because the mean of its divisors is an integer number (2209851).

Almost surely, 2^13679965 is an apocalyptic number.

It is an amenable number.

13679965 is a deficient number, since it is larger than the sum of its proper divisors (3998843).

13679965 is a wasteful number, since it uses less digits than its factorization.

13679965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210479.

The product of its digits is 306180, while the sum is 46.

The square root of 13679965 is about 3698.6436703202. The cubic root of 13679965 is about 239.1635523207.

The spelling of 13679965 in words is "thirteen million, six hundred seventy-nine thousand, nine hundred sixty-five".