6613944 has 16 divisors (see below), whose sum is σ = 16534920. Its totient is φ = 2204640.

The previous prime is 6613931. The next prime is 6613973. The reversal of 6613944 is 4493166.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 137767 + ... + 137814.

Almost surely, 2^6613944 is an apocalyptic number.

It is an amenable number.

6613944 is an abundant number, since it is smaller than the sum of its proper divisors (9920976).

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

6613944 is a wasteful number, since it uses less digits than its factorization.

6613944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275590 (or 275586 counting only the distinct ones).

The product of its digits is 15552, while the sum is 33.

The square root of 6613944 is about 2571.7589311598. The cubic root of 6613944 is about 187.7097528214.

It can be divided in two parts, 6613 and 944, that added together give a palindrome (7557).

The spelling of 6613944 in words is "six million, six hundred thirteen thousand, nine hundred forty-four".