7982665 has 8 divisors (see below), whose sum is σ = 9641160. Its totient is φ = 6344832.

The previous prime is 7982651. The next prime is 7982671. The reversal of 7982665 is 5662897.

It can be written as a sum of positive squares in 4 ways, for example, as 1692601 + 6290064 = 1301^2 + 2508^2 .

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 7982665 - 2⁹ = 7982153 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4300 + ... + 5869.

It is an arithmetic number, because the mean of its divisors is an integer number (1205145).

Almost surely, 2^7982665 is an apocalyptic number.

It is an amenable number.

7982665 is a deficient number, since it is larger than the sum of its proper divisors (1658495).

7982665 is a wasteful number, since it uses less digits than its factorization.

7982665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10331.

The product of its digits is 181440, while the sum is 43.

The square root of 7982665 is about 2825.3610388763. The cubic root of 7982665 is about 199.8554371998.

The spelling of 7982665 in words is "seven million, nine hundred eighty-two thousand, six hundred sixty-five".