6442697 has 2 divisors, whose sum is σ = 6442698. Its totient is φ = 6442696.

The previous prime is 6442679. The next prime is 6442703. The reversal of 6442697 is 7962446.

Together with previous prime (6442679) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4857616 + 1585081 = 2204^2 + 1259^2 .

It is a cyclic number.

It is not a de Polignac number, because 6442697 - 2⁶ = 6442633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6442697.

It is not a weakly prime, because it can be changed into another prime (6442897) 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, 3221348 + 3221349.

It is an arithmetic number, because the mean of its divisors is an integer number (3221349).

Almost surely, 2^6442697 is an apocalyptic number.

It is an amenable number.

6442697 is a deficient number, since it is larger than the sum of its proper divisors (1).

6442697 is an equidigital number, since it uses as much as digits as its factorization.

6442697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 38.

The square root of 6442697 is about 2538.2468359086. The cubic root of 6442697 is about 186.0755175680.

The spelling of 6442697 in words is "six million, four hundred forty-two thousand, six hundred ninety-seven".