689124206 has 16 divisors (see below), whose sum is σ = 1142079264. Its totient is φ = 310193664.

The previous prime is 689124197. The next prime is 689124209. The reversal of 689124206 is 602421986.

689124206 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 689124206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689124209) 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, 439835 + ... + 441398.

It is an arithmetic number, because the mean of its divisors is an integer number (71379954).

Almost surely, 2^689124206 is an apocalyptic number.

689124206 is a deficient number, since it is larger than the sum of its proper divisors (452955058).

689124206 is a wasteful number, since it uses less digits than its factorization.

689124206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881275.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 689124206 is about 26251.1753260687. The cubic root of 689124206 is about 883.2815690880.

The spelling of 689124206 in words is "six hundred eighty-nine million, one hundred twenty-four thousand, two hundred six".