6785861 has 4 divisors (see below), whose sum is σ = 6878892. Its totient is φ = 6692832.

The previous prime is 6785843. The next prime is 6785893. The reversal of 6785861 is 1685876.

6785861 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2825761 + 3960100 = 1681^2 + 1990^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6785861 is a prime.

It is a super-2 number, since 2×6785861² = 92095819022642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6785461) 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, 46406 + ... + 46551.

It is an arithmetic number, because the mean of its divisors is an integer number (1719723).

Almost surely, 2^6785861 is an apocalyptic number.

It is an amenable number.

6785861 is a deficient number, since it is larger than the sum of its proper divisors (93031).

6785861 is an equidigital number, since it uses as much as digits as its factorization.

6785861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93030.

The product of its digits is 80640, while the sum is 41.

The square root of 6785861 is about 2604.9685218828. The cubic root of 6785861 is about 189.3222482296.

The spelling of 6785861 in words is "six million, seven hundred eighty-five thousand, eight hundred sixty-one".