13906769 has 2 divisors, whose sum is σ = 13906770. Its totient is φ = 13906768.

The previous prime is 13906757. The next prime is 13906777. The reversal of 13906769 is 96760931.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11641744 + 2265025 = 3412^2 + 1505^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13906769 is a prime.

It is a super-2 number, since 2×13906769² = 386796448038722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13906729) 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, 6953384 + 6953385.

It is an arithmetic number, because the mean of its divisors is an integer number (6953385).

Almost surely, 2^13906769 is an apocalyptic number.

It is an amenable number.

13906769 is a deficient number, since it is larger than the sum of its proper divisors (1).

13906769 is an equidigital number, since it uses as much as digits as its factorization.

13906769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 13906769 is about 3729.1780595729. The cubic root of 13906769 is about 240.4780344823.

The spelling of 13906769 in words is "thirteen million, nine hundred six thousand, seven hundred sixty-nine".