13356779 has 2 divisors, whose sum is σ = 13356780. Its totient is φ = 13356778.

The previous prime is 13356719. The next prime is 13356787. The reversal of 13356779 is 97765331.

It is a strong prime.

It is an emirp because it is prime and its reverse (97765331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13356779 - 2⁸ = 13356523 is a prime.

It is a Chen prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (13356719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6678389 + 6678390.

It is an arithmetic number, because the mean of its divisors is an integer number (6678390).

Almost surely, 2^13356779 is an apocalyptic number.

13356779 is a deficient number, since it is larger than the sum of its proper divisors (1).

13356779 is an equidigital number, since it uses as much as digits as its factorization.

13356779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 119070, while the sum is 41.

The square root of 13356779 is about 3654.6927367427. The cubic root of 13356779 is about 237.2651284692.

The spelling of 13356779 in words is "thirteen million, three hundred fifty-six thousand, seven hundred seventy-nine".