13479943 has 2 divisors, whose sum is σ = 13479944. Its totient is φ = 13479942.

The previous prime is 13479913. The next prime is 13479979. The reversal of 13479943 is 34997431.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13479943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13479896 and 13479905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13479913) 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 as a sum of consecutive naturals, namely, 6739971 + 6739972.

It is an arithmetic number, because the mean of its divisors is an integer number (6739972).

Almost surely, 2^13479943 is an apocalyptic number.

13479943 is a deficient number, since it is larger than the sum of its proper divisors (1).

13479943 is an equidigital number, since it uses as much as digits as its factorization.

13479943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 40.

The square root of 13479943 is about 3671.5041876593. The cubic root of 13479943 is about 237.9921789676.

The spelling of 13479943 in words is "thirteen million, four hundred seventy-nine thousand, nine hundred forty-three".