6689349 has 12 divisors (see below), whose sum is σ = 10171200. Its totient is φ = 4224744.

The previous prime is 6689339. The next prime is 6689351. The reversal of 6689349 is 9439866.

It is not a de Polignac number, because 6689349 - 2⁵ = 6689317 is a prime.

6689349 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6689339) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19389 + ... + 19730.

It is an arithmetic number, because the mean of its divisors is an integer number (847600).

Almost surely, 2^6689349 is an apocalyptic number.

It is an amenable number.

6689349 is a deficient number, since it is larger than the sum of its proper divisors (3481851).

6689349 is a wasteful number, since it uses less digits than its factorization.

6689349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39144 (or 39141 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 6689349 is about 2586.3775826433. The cubic root of 6689349 is about 188.4204130856.

The spelling of 6689349 in words is "six million, six hundred eighty-nine thousand, three hundred forty-nine".