6859906 has 8 divisors (see below), whose sum is σ = 10301004. Its totient is φ = 3426240.

The previous prime is 6859901. The next prime is 6859933. The reversal of 6859906 is 6099586.

It can be written as a sum of positive squares in 2 ways, for example, as 6456681 + 403225 = 2541^2 + 635^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (6859901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2446 + ... + 4438.

Almost surely, 2^6859906 is an apocalyptic number.

6859906 is a deficient number, since it is larger than the sum of its proper divisors (3441098).

6859906 is a wasteful number, since it uses less digits than its factorization.

6859906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3716.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 6859906 is about 2619.1422259969. The cubic root of 6859906 is about 190.0083652827.

The spelling of 6859906 in words is "six million, eight hundred fifty-nine thousand, nine hundred six".