6859873 has 2 divisors, whose sum is σ = 6859874. Its totient is φ = 6859872.

The previous prime is 6859861. The next prime is 6859901. The reversal of 6859873 is 3789586.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4809249 + 2050624 = 2193^2 + 1432^2 .

It is a cyclic number.

It is not a de Polignac number, because 6859873 - 2⁵ = 6859841 is a prime.

It is a super-2 number, since 2×6859873² = 94115715152258, which contains 22 as substring.

6859873 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6859813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3429936 + 3429937.

It is an arithmetic number, because the mean of its divisors is an integer number (3429937).

Almost surely, 2^6859873 is an apocalyptic number.

It is an amenable number.

6859873 is a deficient number, since it is larger than the sum of its proper divisors (1).

6859873 is an equidigital number, since it uses as much as digits as its factorization.

6859873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 46.

The square root of 6859873 is about 2619.1359262169. The cubic root of 6859873 is about 190.0080605999.

The spelling of 6859873 in words is "six million, eight hundred fifty-nine thousand, eight hundred seventy-three".