6825665 has 16 divisors (see below), whose sum is σ = 10212480. Its totient is φ = 4254720.

The previous prime is 6825661. The next prime is 6825683. The reversal of 6825665 is 5665286.

It is a happy number.

It is not a de Polignac number, because 6825665 - 2² = 6825661 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6825661) 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, 8480 + ... + 9249.

It is an arithmetic number, because the mean of its divisors is an integer number (638280).

Almost surely, 2^6825665 is an apocalyptic number.

It is an amenable number.

6825665 is a deficient number, since it is larger than the sum of its proper divisors (3386815).

6825665 is a wasteful number, since it uses less digits than its factorization.

6825665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17752.

The product of its digits is 86400, while the sum is 38.

The square root of 6825665 is about 2612.5973666066. The cubic root of 6825665 is about 189.6916976048.

The spelling of 6825665 in words is "six million, eight hundred twenty-five thousand, six hundred sixty-five".