6684249 has 16 divisors (see below), whose sum is σ = 10471104. Its totient is φ = 3739200.

The previous prime is 6684233. The next prime is 6684253. The reversal of 6684249 is 9424866.

It is not a de Polignac number, because 6684249 - 2⁴ = 6684233 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

6684249 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6684229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7362 + ... + 8219.

It is an arithmetic number, because the mean of its divisors is an integer number (654444).

Almost surely, 2^6684249 is an apocalyptic number.

It is an amenable number.

6684249 is a deficient number, since it is larger than the sum of its proper divisors (3786855).

6684249 is a wasteful number, since it uses less digits than its factorization.

6684249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15608.

The product of its digits is 82944, while the sum is 39.

The square root of 6684249 is about 2585.3914597213. The cubic root of 6684249 is about 188.3725166251.

The spelling of 6684249 in words is "six million, six hundred eighty-four thousand, two hundred forty-nine".