13397443 has 2 divisors, whose sum is σ = 13397444. Its totient is φ = 13397442.

The previous prime is 13397407. The next prime is 13397473. The reversal of 13397443 is 34479331.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13397443 - 2¹⁷ = 13266371 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13397399 and 13397408.

It is not a weakly prime, because it can be changed into another prime (13397473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6698721 + 6698722.

It is an arithmetic number, because the mean of its divisors is an integer number (6698722).

Almost surely, 2^13397443 is an apocalyptic number.

13397443 is a deficient number, since it is larger than the sum of its proper divisors (1).

13397443 is an equidigital number, since it uses as much as digits as its factorization.

13397443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 34.

The square root of 13397443 is about 3660.2517672969. The cubic root of 13397443 is about 237.5056648695.

The spelling of 13397443 in words is "thirteen million, three hundred ninety-seven thousand, four hundred forty-three".