13879543 has 2 divisors, whose sum is σ = 13879544. Its totient is φ = 13879542.

The previous prime is 13879507. The next prime is 13879549. The reversal of 13879543 is 34597831.

It is a strong prime.

It is an emirp because it is prime and its reverse (34597831) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13879543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13879496 and 13879505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13879549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6939771 + 6939772.

It is an arithmetic number, because the mean of its divisors is an integer number (6939772).

Almost surely, 2^13879543 is an apocalyptic number.

13879543 is a deficient number, since it is larger than the sum of its proper divisors (1).

13879543 is an equidigital number, since it uses as much as digits as its factorization.

13879543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 40.

The square root of 13879543 is about 3725.5258689211. The cubic root of 13879543 is about 240.3209998696.

The spelling of 13879543 in words is "thirteen million, eight hundred seventy-nine thousand, five hundred forty-three".