6850399 has 4 divisors (see below), whose sum is σ = 6911136. Its totient is φ = 6789664.

The previous prime is 6850379. The next prime is 6850421. The reversal of 6850399 is 9930586.

6850399 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6850399 - 2⁷ = 6850271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6850309) 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 in 3 ways as a sum of consecutive naturals, for example, 30199 + ... + 30424.

It is an arithmetic number, because the mean of its divisors is an integer number (1727784).

Almost surely, 2^6850399 is an apocalyptic number.

6850399 is a deficient number, since it is larger than the sum of its proper divisors (60737).

6850399 is a wasteful number, since it uses less digits than its factorization.

6850399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60736.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 6850399 is about 2617.3266895823. The cubic root of 6850399 is about 189.9205484982.

The spelling of 6850399 in words is "six million, eight hundred fifty thousand, three hundred ninety-nine".