6859870 has 8 divisors (see below), whose sum is σ = 12347784. Its totient is φ = 2743944.

The previous prime is 6859861. The next prime is 6859873. The reversal of 6859870 is 789586.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6859873) 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, 342984 + ... + 343003.

It is an arithmetic number, because the mean of its divisors is an integer number (1543473).

Almost surely, 2^6859870 is an apocalyptic number.

6859870 is a deficient number, since it is larger than the sum of its proper divisors (5487914).

6859870 is a wasteful number, since it uses less digits than its factorization.

6859870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685994.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 6859870 is about 2619.1353535089. The cubic root of 6859870 is about 190.0080329014.

The spelling of 6859870 in words is "six million, eight hundred fifty-nine thousand, eight hundred seventy".