6850999 has 2 divisors, whose sum is σ = 6851000. Its totient is φ = 6850998.

The previous prime is 6850997. The next prime is 6851023. The reversal of 6850999 is 9990586.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6850999 - 2¹ = 6850997 is a prime.

Together with 6850997, it forms a pair of twin primes.

6850999 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6850997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3425499 + 3425500.

It is an arithmetic number, because the mean of its divisors is an integer number (3425500).

Almost surely, 2^6850999 is an apocalyptic number.

6850999 is a deficient number, since it is larger than the sum of its proper divisors (1).

6850999 is an equidigital number, since it uses as much as digits as its factorization.

6850999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 174960, while the sum is 46.

The square root of 6850999 is about 2617.4413078425. The cubic root of 6850999 is about 189.9260931388.

It can be divided in two parts, 6850 and 999, that multiplied together give a triangular number (6843150 = T₃₆₉₉).

The spelling of 6850999 in words is "six million, eight hundred fifty thousand, nine hundred ninety-nine".