6722156 has 24 divisors (see below), whose sum is σ = 13583136. Its totient is φ = 2851200.

The previous prime is 6722153. The next prime is 6722161. The reversal of 6722156 is 6512276.

It is not an unprimeable number, because it can be changed into a prime (6722153) 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 in 7 ways as a sum of consecutive naturals, for example, 1640 + ... + 4016.

It is an arithmetic number, because the mean of its divisors is an integer number (565964).

Almost surely, 2^6722156 is an apocalyptic number.

It is an amenable number.

6722156 is an abundant number, since it is smaller than the sum of its proper divisors (6860980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6722156 is a wasteful number, since it uses less digits than its factorization.

6722156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2489 (or 2487 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 6722156 is about 2592.7120935422. The cubic root of 6722156 is about 188.7279383012.

The spelling of 6722156 in words is "six million, seven hundred twenty-two thousand, one hundred fifty-six".