6723441 has 6 divisors (see below), whose sum is σ = 9711650. Its totient is φ = 4482288.

The previous prime is 6723439. The next prime is 6723443. The reversal of 6723441 is 1443276.

It is an interprime number because it is at equal distance from previous prime (6723439) and next prime (6723443).

It can be written as a sum of positive squares in only one way, i.e., 4410000 + 2313441 = 2100^2 + 1521^2 .

It is not a de Polignac number, because 6723441 - 2¹ = 6723439 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6723443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 373516 + ... + 373533.

Almost surely, 2^6723441 is an apocalyptic number.

It is an amenable number.

6723441 is a deficient number, since it is larger than the sum of its proper divisors (2988209).

6723441 is a wasteful number, since it uses less digits than its factorization.

6723441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747055 (or 747052 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 6723441 is about 2592.9598917068. The cubic root of 6723441 is about 188.7399632106.

The spelling of 6723441 in words is "six million, seven hundred twenty-three thousand, four hundred forty-one".