13679873 has 2 divisors, whose sum is σ = 13679874. Its totient is φ = 13679872.

The previous prime is 13679833. The next prime is 13679879. The reversal of 13679873 is 37897631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8809024 + 4870849 = 2968^2 + 2207^2 .

It is an emirp because it is prime and its reverse (37897631) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13679873 is a prime.

It is a super-2 number, since 2×13679873² = 374277850592258, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (13679879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6839936 + 6839937.

It is an arithmetic number, because the mean of its divisors is an integer number (6839937).

Almost surely, 2^13679873 is an apocalyptic number.

It is an amenable number.

13679873 is a deficient number, since it is larger than the sum of its proper divisors (1).

13679873 is an equidigital number, since it uses as much as digits as its factorization.

13679873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512, while the sum is 44.

The square root of 13679873 is about 3698.6312333078. The cubic root of 13679873 is about 239.1630161815.

The spelling of 13679873 in words is "thirteen million, six hundred seventy-nine thousand, eight hundred seventy-three".