6396722 has 8 divisors (see below), whose sum is σ = 9609516. Its totient is φ = 3193552.

The previous prime is 6396707. The next prime is 6396751. The reversal of 6396722 is 2276936.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6195121 + 201601 = 2489^2 + 449^2 .

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

It is an Ulam number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 413 + ... + 3600.

Almost surely, 2^6396722 is an apocalyptic number.

6396722 is a deficient number, since it is larger than the sum of its proper divisors (3212794).

6396722 is a wasteful number, since it uses less digits than its factorization.

6396722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4812.

The product of its digits is 27216, while the sum is 35.

The square root of 6396722 is about 2529.1741735199. The cubic root of 6396722 is about 185.6318497474.

The spelling of 6396722 in words is "six million, three hundred ninety-six thousand, seven hundred twenty-two".