13443959 has 2 divisors, whose sum is σ = 13443960. Its totient is φ = 13443958.

The previous prime is 13443943. The next prime is 13443961. The reversal of 13443959 is 95934431.

It is a strong prime.

It is an emirp because it is prime and its reverse (95934431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13443959 - 2⁴ = 13443943 is a prime.

It is a Sophie Germain prime.

Together with 13443961, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13443919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6721979 + 6721980.

It is an arithmetic number, because the mean of its divisors is an integer number (6721980).

Almost surely, 2^13443959 is an apocalyptic number.

13443959 is a deficient number, since it is larger than the sum of its proper divisors (1).

13443959 is an equidigital number, since it uses as much as digits as its factorization.

13443959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 38.

The square root of 13443959 is about 3666.6004690994. The cubic root of 13443959 is about 237.7802210439.

The spelling of 13443959 in words is "thirteen million, four hundred forty-three thousand, nine hundred fifty-nine".