13983471 has 24 divisors (see below), whose sum is σ = 21580416. Its totient is φ = 8704080.

The previous prime is 13983443. The next prime is 13983479. The reversal of 13983471 is 17438931.

It is a happy number.

It is not a de Polignac number, because 13983471 - 2⁵ = 13983439 is a prime.

It is a super-3 number, since 3×13983471³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13983479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8116 + ... + 9686.

It is an arithmetic number, because the mean of its divisors is an integer number (899184).

Almost surely, 2^13983471 is an apocalyptic number.

13983471 is a deficient number, since it is larger than the sum of its proper divisors (7596945).

13983471 is a wasteful number, since it uses less digits than its factorization.

13983471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1643 (or 1640 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 13983471 is about 3739.4479539098. The cubic root of 13983471 is about 240.9193384898.

The spelling of 13983471 in words is "thirteen million, nine hundred eighty-three thousand, four hundred seventy-one".