6442273 has 4 divisors (see below), whose sum is σ = 6781360. Its totient is φ = 6103188.

The previous prime is 6442259. The next prime is 6442279. The reversal of 6442273 is 3722446.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6442273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6442279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169515 + ... + 169552.

It is an arithmetic number, because the mean of its divisors is an integer number (1695340).

Almost surely, 2^6442273 is an apocalyptic number.

It is an amenable number.

6442273 is a deficient number, since it is larger than the sum of its proper divisors (339087).

6442273 is a wasteful number, since it uses less digits than its factorization.

6442273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339086.

The product of its digits is 8064, while the sum is 28.

The square root of 6442273 is about 2538.1633123186. The cubic root of 6442273 is about 186.0714355430.

The spelling of 6442273 in words is "six million, four hundred forty-two thousand, two hundred seventy-three".