6730865 has 4 divisors (see below), whose sum is σ = 8077044. Its totient is φ = 5384688.

The previous prime is 6730849. The next prime is 6730903. The reversal of 6730865 is 5680376.

It is a happy number.

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 3389281 + 3341584 = 1841^2 + 1828^2 .

It is a cyclic number.

It is not a de Polignac number, because 6730865 - 2⁴ = 6730849 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 673082 + ... + 673091.

It is an arithmetic number, because the mean of its divisors is an integer number (2019261).

Almost surely, 2^6730865 is an apocalyptic number.

It is an amenable number.

6730865 is a deficient number, since it is larger than the sum of its proper divisors (1346179).

6730865 is a wasteful number, since it uses less digits than its factorization.

6730865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346178.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 6730865 is about 2594.3910653562. The cubic root of 6730865 is about 188.8094063260.

The spelling of 6730865 in words is "six million, seven hundred thirty thousand, eight hundred sixty-five".