13674779 has 2 divisors, whose sum is σ = 13674780. Its totient is φ = 13674778.

The previous prime is 13674757. The next prime is 13674803. The reversal of 13674779 is 97747631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13674779 - 2¹⁶ = 13609243 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13674709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6837389 + 6837390.

It is an arithmetic number, because the mean of its divisors is an integer number (6837390).

Almost surely, 2^13674779 is an apocalyptic number.

13674779 is a deficient number, since it is larger than the sum of its proper divisors (1).

13674779 is an equidigital number, since it uses as much as digits as its factorization.

13674779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 222264, while the sum is 44.

The square root of 13674779 is about 3697.9425360597. The cubic root of 13674779 is about 239.1333266355.

The spelling of 13674779 in words is "thirteen million, six hundred seventy-four thousand, seven hundred seventy-nine".