13982471 has 2 divisors, whose sum is σ = 13982472. Its totient is φ = 13982470.

The previous prime is 13982443. The next prime is 13982491. The reversal of 13982471 is 17428931.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13982471 is a prime.

It is a super-3 number, since 3×13982471³ (a number of 22 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13982401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6991235 + 6991236.

It is an arithmetic number, because the mean of its divisors is an integer number (6991236).

Almost surely, 2^13982471 is an apocalyptic number.

13982471 is a deficient number, since it is larger than the sum of its proper divisors (1).

13982471 is an equidigital number, since it uses as much as digits as its factorization.

13982471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 35.

The square root of 13982471 is about 3739.3142419433. The cubic root of 13982471 is about 240.9135953978.

The spelling of 13982471 in words is "thirteen million, nine hundred eighty-two thousand, four hundred seventy-one".