6861345 has 16 divisors (see below), whose sum is σ = 11087232. Its totient is φ = 3623040.

The previous prime is 6861331. The next prime is 6861367. The reversal of 6861345 is 5431686.

It is not a de Polignac number, because 6861345 - 2⁴ = 6861329 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 676 + ... + 3765.

It is an arithmetic number, because the mean of its divisors is an integer number (692952).

Almost surely, 2^6861345 is an apocalyptic number.

It is an amenable number.

6861345 is a deficient number, since it is larger than the sum of its proper divisors (4225887).

6861345 is a wasteful number, since it uses less digits than its factorization.

6861345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4552.

The product of its digits is 17280, while the sum is 33.

The square root of 6861345 is about 2619.4169198507. The cubic root of 6861345 is about 190.0216503491.

The spelling of 6861345 in words is "six million, eight hundred sixty-one thousand, three hundred forty-five".