13726897 has 2 divisors, whose sum is σ = 13726898. Its totient is φ = 13726896.

The previous prime is 13726849. The next prime is 13726903. The reversal of 13726897 is 79862731.

It is a happy number.

13726897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9790641 + 3936256 = 3129^2 + 1984^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13726897 is a prime.

It is not a weakly prime, because it can be changed into another prime (13736897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6863448 + 6863449.

It is an arithmetic number, because the mean of its divisors is an integer number (6863449).

Almost surely, 2^13726897 is an apocalyptic number.

It is an amenable number.

13726897 is a deficient number, since it is larger than the sum of its proper divisors (1).

13726897 is an equidigital number, since it uses as much as digits as its factorization.

13726897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 43.

The square root of 13726897 is about 3704.9827260056. The cubic root of 13726897 is about 239.4367404546.

The spelling of 13726897 in words is "thirteen million, seven hundred twenty-six thousand, eight hundred ninety-seven".