6689342 has 16 divisors (see below), whose sum is σ = 11154672. Its totient is φ = 2982720.

The previous prime is 6689339. The next prime is 6689351. The reversal of 6689342 is 2439866.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 6689296 and 6689305.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1703 + ... + 4034.

It is an arithmetic number, because the mean of its divisors is an integer number (697167).

Almost surely, 2^6689342 is an apocalyptic number.

6689342 is a deficient number, since it is larger than the sum of its proper divisors (4465330).

6689342 is a wasteful number, since it uses less digits than its factorization.

6689342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5803.

The product of its digits is 62208, while the sum is 38.

The square root of 6689342 is about 2586.3762293990. The cubic root of 6689342 is about 188.4203473621.

The spelling of 6689342 in words is "six million, six hundred eighty-nine thousand, three hundred forty-two".