13697471 has 2 divisors, whose sum is σ = 13697472. Its totient is φ = 13697470.

The previous prime is 13697429. The next prime is 13697473. The reversal of 13697471 is 17479631.

13697471 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 is a cyclic number.

It is not a de Polignac number, because 13697471 - 2¹⁸ = 13435327 is a prime.

It is a super-3 number, since 3×13697471³ (a number of 22 digits) contains 333 as substring.

It is a Sophie Germain prime.

Together with 13697473, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p₈₉₁₆₈₆ and since 13697471 and 891686 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13697473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6848735 + 6848736.

It is an arithmetic number, because the mean of its divisors is an integer number (6848736).

Almost surely, 2^13697471 is an apocalyptic number.

13697471 is a deficient number, since it is larger than the sum of its proper divisors (1).

13697471 is an equidigital number, since it uses as much as digits as its factorization.

13697471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752, while the sum is 38.

The square root of 13697471 is about 3701.0094568915. The cubic root of 13697471 is about 239.2655265702.

The spelling of 13697471 in words is "thirteen million, six hundred ninety-seven thousand, four hundred seventy-one".