7982797 has 2 divisors, whose sum is σ = 7982798. Its totient is φ = 7982796.

The previous prime is 7982791. The next prime is 7982851. The reversal of 7982797 is 7972897.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6081156 + 1901641 = 2466^2 + 1379^2 .

It is a cyclic number.

It is not a de Polignac number, because 7982797 - 2³ = 7982789 is a prime.

It is a d-powerful number, because it can be written as 7³ + 9⁵ + 8⁷ + 2 + 7⁴ + 9⁵ + 7⁸ .

It is a self number, because there is not a number n which added to its sum of digits gives 7982797.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7982791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3991398 + 3991399.

It is an arithmetic number, because the mean of its divisors is an integer number (3991399).

Almost surely, 2^7982797 is an apocalyptic number.

It is an amenable number.

7982797 is a deficient number, since it is larger than the sum of its proper divisors (1).

7982797 is an equidigital number, since it uses as much as digits as its factorization.

7982797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 444528, while the sum is 49.

The square root of 7982797 is about 2825.3843986261. The cubic root of 7982797 is about 199.8565387857.

The spelling of 7982797 in words is "seven million, nine hundred eighty-two thousand, seven hundred ninety-seven".