6722755 has 16 divisors (see below), whose sum is σ = 8840160. Its totient is φ = 4877568.

The previous prime is 6722747. The next prime is 6722759. The reversal of 6722755 is 5572276.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 6722755 - 2³ = 6722747 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6722755.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6722759) 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 15 ways as a sum of consecutive naturals, for example, 2959 + ... + 4711.

It is an arithmetic number, because the mean of its divisors is an integer number (552510).

Almost surely, 2^6722755 is an apocalyptic number.

6722755 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

6722755 is a deficient number, since it is larger than the sum of its proper divisors (2117405).

6722755 is a wasteful number, since it uses less digits than its factorization.

6722755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1830.

The product of its digits is 29400, while the sum is 34.

The square root of 6722755 is about 2592.8276070730. The cubic root of 6722755 is about 188.7335438777.

It can be divided in two parts, 67 and 22755, that added together give a palindrome (22822).

The spelling of 6722755 in words is "six million, seven hundred twenty-two thousand, seven hundred fifty-five".