13895779 has 2 divisors, whose sum is σ = 13895780. Its totient is φ = 13895778.

The previous prime is 13895767. The next prime is 13895797. The reversal of 13895779 is 97759831.

Together with next prime (13895797) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13895779 - 2¹⁵ = 13863011 is a prime.

It is not a weakly prime, because it can be changed into another prime (13895759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6947889 + 6947890.

It is an arithmetic number, because the mean of its divisors is an integer number (6947890).

Almost surely, 2^13895779 is an apocalyptic number.

13895779 is a deficient number, since it is larger than the sum of its proper divisors (1).

13895779 is an equidigital number, since it uses as much as digits as its factorization.

13895779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 476280, while the sum is 49.

The square root of 13895779 is about 3727.7042532905. The cubic root of 13895779 is about 240.4146708525.

The spelling of 13895779 in words is "thirteen million, eight hundred ninety-five thousand, seven hundred seventy-nine".