13446679 has 2 divisors, whose sum is σ = 13446680. Its totient is φ = 13446678.

The previous prime is 13446617. The next prime is 13446709. The reversal of 13446679 is 97664431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13446679 - 2⁷ = 13446551 is a prime.

It is a super-2 number, since 2×13446679² = 361626352258082, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13476679) by changing a digit.

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

It is an upside-down number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6723339 + 6723340.

It is an arithmetic number, because the mean of its divisors is an integer number (6723340).

Almost surely, 2^13446679 is an apocalyptic number.

13446679 is a deficient number, since it is larger than the sum of its proper divisors (1).

13446679 is an equidigital number, since it uses as much as digits as its factorization.

13446679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 40.

The square root of 13446679 is about 3666.9713661276. The cubic root of 13446679 is about 237.7962559680.

The spelling of 13446679 in words is "thirteen million, four hundred forty-six thousand, six hundred seventy-nine".