6442259 has 2 divisors, whose sum is σ = 6442260. Its totient is φ = 6442258.

The previous prime is 6442237. The next prime is 6442279. The reversal of 6442259 is 9522446.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6442259 - 2⁸ = 6442003 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6442279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3221129 + 3221130.

It is an arithmetic number, because the mean of its divisors is an integer number (3221130).

Almost surely, 2^6442259 is an apocalyptic number.

6442259 is a deficient number, since it is larger than the sum of its proper divisors (1).

6442259 is an equidigital number, since it uses as much as digits as its factorization.

6442259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 32.

The square root of 6442259 is about 2538.1605544173. The cubic root of 6442259 is about 186.0713007561.

The spelling of 6442259 in words is "six million, four hundred forty-two thousand, two hundred fifty-nine".