6722126 has 4 divisors (see below), whose sum is σ = 10083192. Its totient is φ = 3361062.

The previous prime is 6722117. The next prime is 6722129. The reversal of 6722126 is 6212276.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6722095 and 6722104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6722129) by changing a digit.

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 as a sum of consecutive naturals, namely, 1680530 + ... + 1680533.

It is an arithmetic number, because the mean of its divisors is an integer number (2520798).

Almost surely, 2^6722126 is an apocalyptic number.

6722126 is a deficient number, since it is larger than the sum of its proper divisors (3361066).

6722126 is a wasteful number, since it uses less digits than its factorization.

6722126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3361065.

The product of its digits is 2016, while the sum is 26.

The square root of 6722126 is about 2592.7063080881. The cubic root of 6722126 is about 188.7276575458.

The spelling of 6722126 in words is "six million, seven hundred twenty-two thousand, one hundred twenty-six".