13916729 has 2 divisors, whose sum is σ = 13916730. Its totient is φ = 13916728.

The previous prime is 13916711. The next prime is 13916767. The reversal of 13916729 is 92761931.

It is a happy number.

13916729 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (13916767) can be obtained adding 13916729 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10549504 + 3367225 = 3248^2 + 1835^2 .

It is a cyclic number.

It is not a de Polignac number, because 13916729 - 2⁸ = 13916473 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 13916692 and 13916701.

It is not a weakly prime, because it can be changed into another prime (13916779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6958364 + 6958365.

It is an arithmetic number, because the mean of its divisors is an integer number (6958365).

Almost surely, 2^13916729 is an apocalyptic number.

It is an amenable number.

13916729 is a deficient number, since it is larger than the sum of its proper divisors (1).

13916729 is an equidigital number, since it uses as much as digits as its factorization.

13916729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20412, while the sum is 38.

The square root of 13916729 is about 3730.5132354677. The cubic root of 13916729 is about 240.5354307438.

The spelling of 13916729 in words is "thirteen million, nine hundred sixteen thousand, seven hundred twenty-nine".