13679431 has 2 divisors, whose sum is σ = 13679432. Its totient is φ = 13679430.

The previous prime is 13679423. The next prime is 13679453. The reversal of 13679431 is 13497631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13679431 - 2³ = 13679423 is a prime.

It is a super-2 number, since 2×13679431² = 374253664967522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13679131) 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, 6839715 + 6839716.

It is an arithmetic number, because the mean of its divisors is an integer number (6839716).

Almost surely, 2^13679431 is an apocalyptic number.

13679431 is a deficient number, since it is larger than the sum of its proper divisors (1).

13679431 is an equidigital number, since it uses as much as digits as its factorization.

13679431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 34.

The square root of 13679431 is about 3698.5714809910. The cubic root of 13679431 is about 239.1604403488.

The spelling of 13679431 in words is "thirteen million, six hundred seventy-nine thousand, four hundred thirty-one".