13711897 has 2 divisors, whose sum is σ = 13711898. Its totient is φ = 13711896.

The previous prime is 13711847. The next prime is 13711903. The reversal of 13711897 is 79811731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13220496 + 491401 = 3636^2 + 701^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13711897 is a prime.

It is a super-2 number, since 2×13711897² = 376032238677218, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13711837) 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, 6855948 + 6855949.

It is an arithmetic number, because the mean of its divisors is an integer number (6855949).

Almost surely, 2^13711897 is an apocalyptic number.

It is an amenable number.

13711897 is a deficient number, since it is larger than the sum of its proper divisors (1).

13711897 is an equidigital number, since it uses as much as digits as its factorization.

13711897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 37.

The square root of 13711897 is about 3702.9578717560. The cubic root of 13711897 is about 239.3494942227.

The spelling of 13711897 in words is "thirteen million, seven hundred eleven thousand, eight hundred ninety-seven".