13943873 has 2 divisors, whose sum is σ = 13943874. Its totient is φ = 13943872.

The previous prime is 13943869. The next prime is 13943933. The reversal of 13943873 is 37834931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13082689 + 861184 = 3617^2 + 928^2 .

It is a cyclic number.

It is not a de Polignac number, because 13943873 - 2² = 13943869 is a prime.

It is a super-3 number, since 3×13943873³ (a number of 22 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (13943843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6971936 + 6971937.

It is an arithmetic number, because the mean of its divisors is an integer number (6971937).

Almost surely, 2^13943873 is an apocalyptic number.

It is an amenable number.

13943873 is a deficient number, since it is larger than the sum of its proper divisors (1).

13943873 is an equidigital number, since it uses as much as digits as its factorization.

13943873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 38.

The square root of 13943873 is about 3734.1495685095. The cubic root of 13943873 is about 240.6917139579.

The spelling of 13943873 in words is "thirteen million, nine hundred forty-three thousand, eight hundred seventy-three".