6980665 has 8 divisors (see below), whose sum is σ = 8391240. Its totient is φ = 5574912.

The previous prime is 6980647. The next prime is 6980669. The reversal of 6980665 is 5660896.

It can be written as a sum of positive squares in 4 ways, for example, as 710649 + 6270016 = 843^2 + 2504^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6980665 - 2¹¹ = 6978617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6980669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4171 + ... + 5599.

It is an arithmetic number, because the mean of its divisors is an integer number (1048905).

Almost surely, 2^6980665 is an apocalyptic number.

It is an amenable number.

6980665 is a deficient number, since it is larger than the sum of its proper divisors (1410575).

6980665 is a wasteful number, since it uses less digits than its factorization.

6980665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2411.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 6980665 is about 2642.0948128332. The cubic root of 6980665 is about 191.1168295592.

The spelling of 6980665 in words is "six million, nine hundred eighty thousand, six hundred sixty-five".