6749849 has 8 divisors (see below), whose sum is σ = 6885000. Its totient is φ = 6616192.

The previous prime is 6749843. The next prime is 6749861. The reversal of 6749849 is 9489476.

It can be written as a sum of positive squares in 4 ways, for example, as 211600 + 6538249 = 460^2 + 2557^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6749849 - 2⁸ = 6749593 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 (6749843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13007 + ... + 13515.

It is an arithmetic number, because the mean of its divisors is an integer number (860625).

Almost surely, 2^6749849 is an apocalyptic number.

It is an amenable number.

6749849 is a deficient number, since it is larger than the sum of its proper divisors (135151).

6749849 is a wasteful number, since it uses less digits than its factorization.

6749849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747.

The product of its digits is 435456, while the sum is 47.

The square root of 6749849 is about 2598.0471512272. The cubic root of 6749849 is about 188.9867482287.

The spelling of 6749849 in words is "six million, seven hundred forty-nine thousand, eight hundred forty-nine".