6722613 has 6 divisors (see below), whose sum is σ = 9710454. Its totient is φ = 4481736.

The previous prime is 6722603. The next prime is 6722623. The reversal of 6722613 is 3162276.

It is a happy number.

6722613 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (6722603) and next prime (6722623).

It can be written as a sum of positive squares in only one way, i.e., 4088484 + 2634129 = 2022^2 + 1623^2 .

It is not a de Polignac number, because 6722613 - 2⁵ = 6722581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6722603) 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 5 ways as a sum of consecutive naturals, for example, 373470 + ... + 373487.

It is an arithmetic number, because the mean of its divisors is an integer number (1618409).

Almost surely, 2^6722613 is an apocalyptic number.

It is an amenable number.

6722613 is a deficient number, since it is larger than the sum of its proper divisors (2987841).

6722613 is a wasteful number, since it uses less digits than its factorization.

6722613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746963 (or 746960 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 6722613 is about 2592.8002236964. The cubic root of 6722613 is about 188.7322150399.

Adding to 6722613 its reverse (3162276), we get a palindrome (9884889).

The spelling of 6722613 in words is "six million, seven hundred twenty-two thousand, six hundred thirteen".