13279949 has 2 divisors, whose sum is σ = 13279950. Its totient is φ = 13279948.

The previous prime is 13279943. The next prime is 13279951. The reversal of 13279949 is 94997231.

13279949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12124324 + 1155625 = 3482^2 + 1075^2 .

It is a cyclic number.

It is not a de Polignac number, because 13279949 - 2¹⁶ = 13214413 is a prime.

Together with 13279951, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13279943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6639974 + 6639975.

It is an arithmetic number, because the mean of its divisors is an integer number (6639975).

Almost surely, 2^13279949 is an apocalyptic number.

It is an amenable number.

13279949 is a deficient number, since it is larger than the sum of its proper divisors (1).

13279949 is an equidigital number, since it uses as much as digits as its factorization.

13279949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 44.

The square root of 13279949 is about 3644.1664341794. The cubic root of 13279949 is about 236.8093263633.

The spelling of 13279949 in words is "thirteen million, two hundred seventy-nine thousand, nine hundred forty-nine".