7622281 has 2 divisors, whose sum is σ = 7622282. Its totient is φ = 7622280.

The previous prime is 7622267. The next prime is 7622291. The reversal of 7622281 is 1822267.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6170256 + 1452025 = 2484^2 + 1205^2 .

It is a cyclic number.

It is not a de Polignac number, because 7622281 - 2⁹ = 7621769 is a prime.

It is a super-2 number, since 2×7622281² = 116198335285922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7622201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3811140 + 3811141.

It is an arithmetic number, because the mean of its divisors is an integer number (3811141).

Almost surely, 2^7622281 is an apocalyptic number.

It is an amenable number.

7622281 is a deficient number, since it is larger than the sum of its proper divisors (1).

7622281 is an equidigital number, since it uses as much as digits as its factorization.

7622281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2688, while the sum is 28.

The square root of 7622281 is about 2760.8478770117. The cubic root of 7622281 is about 196.8014611041.

The spelling of 7622281 in words is "seven million, six hundred twenty-two thousand, two hundred eighty-one".