6422847 has 8 divisors (see below), whose sum is σ = 8608944. Its totient is φ = 4259328.

The previous prime is 6422837. The next prime is 6422849. The reversal of 6422847 is 7482246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6422847 - 2¹⁶ = 6357311 is a prime.

It is a d-powerful number, because it can be written as 6 + 4⁴ + 2¹⁷ + 2²¹ + 8 + 4¹¹ + 7² .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6422849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4968 + ... + 6125.

It is an arithmetic number, because the mean of its divisors is an integer number (1076118).

Almost surely, 2^6422847 is an apocalyptic number.

6422847 is a deficient number, since it is larger than the sum of its proper divisors (2186097).

6422847 is a wasteful number, since it uses less digits than its factorization.

6422847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11289.

The product of its digits is 21504, while the sum is 33.

The square root of 6422847 is about 2534.3336402297. Note that the first 3 decimals coincide. The cubic root of 6422847 is about 185.8842209280.

The spelling of 6422847 in words is "six million, four hundred twenty-two thousand, eight hundred forty-seven".