13679797 has 2 divisors, whose sum is σ = 13679798. Its totient is φ = 13679796.

The previous prime is 13679789. The next prime is 13679803. The reversal of 13679797 is 79797631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11249316 + 2430481 = 3354^2 + 1559^2 .

It is a cyclic number.

It is not a de Polignac number, because 13679797 - 2³ = 13679789 is a prime.

It is a super-2 number, since 2×13679797² = 374273691922418, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13679797.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13679707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6839898 + 6839899.

It is an arithmetic number, because the mean of its divisors is an integer number (6839899).

Almost surely, 2^13679797 is an apocalyptic number.

It is an amenable number.

13679797 is a deficient number, since it is larger than the sum of its proper divisors (1).

13679797 is an equidigital number, since it uses as much as digits as its factorization.

13679797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 500094, while the sum is 49.

The square root of 13679797 is about 3698.6209592225. The cubic root of 13679797 is about 239.1625732821.

The spelling of 13679797 in words is "thirteen million, six hundred seventy-nine thousand, seven hundred ninety-seven".