6327644 has 6 divisors (see below), whose sum is σ = 11073384. Its totient is φ = 3163820.

The previous prime is 6327641. The next prime is 6327647. The reversal of 6327644 is 4467236.

It is an interprime number because it is at equal distance from previous prime (6327641) and next prime (6327647).

It is a d-powerful number, because it can be written as 6² + 3⁹ + 2²¹ + 7² + 6² + 4⁷ + 4¹¹ .

It is a self number, because there is not a number n which added to its sum of digits gives 6327644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6327641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 790952 + ... + 790959.

It is an arithmetic number, because the mean of its divisors is an integer number (1845564).

Almost surely, 2^6327644 is an apocalyptic number.

It is an amenable number.

6327644 is a deficient number, since it is larger than the sum of its proper divisors (4745740).

6327644 is a wasteful number, since it uses less digits than its factorization.

6327644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581915 (or 1581913 counting only the distinct ones).

The product of its digits is 24192, while the sum is 32.

The square root of 6327644 is about 2515.4808685418. The cubic root of 6327644 is about 184.9612190442.

The spelling of 6327644 in words is "six million, three hundred twenty-seven thousand, six hundred forty-four".