6422816 has 12 divisors (see below), whose sum is σ = 12644982. Its totient is φ = 3211392.

The previous prime is 6422813. The next prime is 6422837. The reversal of 6422816 is 6182246.

It can be written as a sum of positive squares in only one way, i.e., 3254416 + 3168400 = 1804^2 + 1780^2 .

It is not an unprimeable number, because it can be changed into a prime (6422813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100325 + ... + 100388.

Almost surely, 2^6422816 is an apocalyptic number.

It is an amenable number.

6422816 is a deficient number, since it is larger than the sum of its proper divisors (6222166).

6422816 is a wasteful number, since it uses less digits than its factorization.

6422816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200723 (or 200715 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 6422816 is about 2534.3275242162. The cubic root of 6422816 is about 185.8839218696.

The spelling of 6422816 in words is "six million, four hundred twenty-two thousand, eight hundred sixteen".