7682281 has 2 divisors, whose sum is σ = 7682282. Its totient is φ = 7682280.

The previous prime is 7682261. The next prime is 7682309. The reversal of 7682281 is 1822867.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5248681 + 2433600 = 2291^2 + 1560^2 .

It is an emirp because it is prime and its reverse (1822867) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7682281 - 2¹⁵ = 7649513 is a prime.

It is a super-2 number, since 2×7682281² = 118034882725922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7682201) by changing a digit.

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 as a sum of consecutive naturals, namely, 3841140 + 3841141.

It is an arithmetic number, because the mean of its divisors is an integer number (3841141).

Almost surely, 2^7682281 is an apocalyptic number.

It is an amenable number.

7682281 is a deficient number, since it is larger than the sum of its proper divisors (1).

7682281 is an equidigital number, since it uses as much as digits as its factorization.

7682281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10752, while the sum is 34.

The square root of 7682281 is about 2771.6928040459. The cubic root of 7682281 is about 197.3164967551.

The spelling of 7682281 in words is "seven million, six hundred eighty-two thousand, two hundred eighty-one".