6943399 has 2 divisors, whose sum is σ = 6943400. Its totient is φ = 6943398.

The previous prime is 6943397. The next prime is 6943403. The reversal of 6943399 is 9933496.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6943399 - 2¹ = 6943397 is a prime.

Together with 6943397, it forms a pair of twin primes.

It is a d-powerful number, because it can be written as 6⁸ + 9 + 4¹¹ + 3³ + 3¹² + 9⁴ + 9⁶ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6943397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3471699 + 3471700.

It is an arithmetic number, because the mean of its divisors is an integer number (3471700).

Almost surely, 2^6943399 is an apocalyptic number.

6943399 is a deficient number, since it is larger than the sum of its proper divisors (1).

6943399 is an equidigital number, since it uses as much as digits as its factorization.

6943399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 157464, while the sum is 43.

The square root of 6943399 is about 2635.0330168709. The cubic root of 6943399 is about 190.7761327306.

The spelling of 6943399 in words is "six million, nine hundred forty-three thousand, three hundred ninety-nine".