6682749 has 4 divisors (see below), whose sum is σ = 8910336. Its totient is φ = 4455164.

The previous prime is 6682747. The next prime is 6682769. The reversal of 6682749 is 9472866.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6682749 - 2¹ = 6682747 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 6682749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6682747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1113789 + ... + 1113794.

It is an arithmetic number, because the mean of its divisors is an integer number (2227584).

Almost surely, 2^6682749 is an apocalyptic number.

It is an amenable number.

6682749 is a deficient number, since it is larger than the sum of its proper divisors (2227587).

6682749 is a wasteful number, since it uses less digits than its factorization.

6682749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2227586.

The product of its digits is 145152, while the sum is 42.

The square root of 6682749 is about 2585.1013519783. The cubic root of 6682749 is about 188.3584247945.

The spelling of 6682749 in words is "six million, six hundred eighty-two thousand, seven hundred forty-nine".