6749144 has 8 divisors (see below), whose sum is σ = 12654660. Its totient is φ = 3374568.

The previous prime is 6749131. The next prime is 6749159. The reversal of 6749144 is 4419476.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×6749144³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421814 + ... + 421829.

Almost surely, 2^6749144 is an apocalyptic number.

It is an amenable number.

6749144 is a deficient number, since it is larger than the sum of its proper divisors (5905516).

6749144 is a wasteful number, since it uses less digits than its factorization.

6749144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843649 (or 843645 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 6749144 is about 2597.9114688534. The cubic root of 6749144 is about 188.9801683138.

The spelling of 6749144 in words is "six million, seven hundred forty-nine thousand, one hundred forty-four".