6861995 has 16 divisors (see below), whose sum is σ = 9573120. Its totient is φ = 4624224.

The previous prime is 6861977. The next prime is 6861997. The reversal of 6861995 is 5991686.

It is a cyclic number.

It is not a de Polignac number, because 6861995 - 2²⁰ = 5813419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6861997) 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, 404 + ... + 3726.

It is an arithmetic number, because the mean of its divisors is an integer number (598320).

Almost surely, 2^6861995 is an apocalyptic number.

6861995 is a deficient number, since it is larger than the sum of its proper divisors (2711125).

6861995 is a wasteful number, since it uses less digits than its factorization.

6861995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3394.

The product of its digits is 116640, while the sum is 44.

The square root of 6861995 is about 2619.5409903264. The cubic root of 6861995 is about 190.0276506388.

The spelling of 6861995 in words is "six million, eight hundred sixty-one thousand, nine hundred ninety-five".