6859860 has 48 divisors (see below), whose sum is σ = 21952896. Its totient is φ = 1567872.

The previous prime is 6859847. The next prime is 6859861. The reversal of 6859860 is 689586.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6859861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7747 + ... + 8586.

It is an arithmetic number, because the mean of its divisors is an integer number (457352).

Almost surely, 2^6859860 is an apocalyptic number.

6859860 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6859860 is an abundant number, since it is smaller than the sum of its proper divisors (15093036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6859860 is a wasteful number, since it uses less digits than its factorization.

6859860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16352 (or 16350 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 6859860 is about 2619.1334444812. The cubic root of 6859860 is about 190.0079405730.

The spelling of 6859860 in words is "six million, eight hundred fifty-nine thousand, eight hundred sixty".