13983843 has 18 divisors (see below), whose sum is σ = 19963596. Its totient is φ = 8705088.

The previous prime is 13983841. The next prime is 13983859. The reversal of 13983843 is 34838931.

It is not a de Polignac number, because 13983843 - 2¹ = 13983841 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (13983841) 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 in 17 ways as a sum of consecutive naturals, for example, 110046 + ... + 110172.

Almost surely, 2^13983843 is an apocalyptic number.

13983843 is a deficient number, since it is larger than the sum of its proper divisors (5979753).

13983843 is an equidigital number, since it uses as much as digits as its factorization.

13983843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291 (or 147 counting only the distinct ones).

The product of its digits is 62208, while the sum is 39.

The square root of 13983843 is about 3739.4976935412. The cubic root of 13983843 is about 240.9214748502.

Multiplying 13983843 by its product of digits (62208), we get a square (869906905344 = 932688²).

The spelling of 13983843 in words is "thirteen million, nine hundred eighty-three thousand, eight hundred forty-three".