688850806 has 16 divisors (see below), whose sum is σ = 1191926016. Its totient is φ = 292462056.

The previous prime is 688850803. The next prime is 688850807. The reversal of 688850806 is 608058886.

688850806 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 688850806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (688850803) 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, 228426 + ... + 231421.

It is an arithmetic number, because the mean of its divisors is an integer number (74495376).

Almost surely, 2^688850806 is an apocalyptic number.

688850806 is a deficient number, since it is larger than the sum of its proper divisors (503075210).

688850806 is a wasteful number, since it uses less digits than its factorization.

688850806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459963.

The product of its (nonzero) digits is 737280, while the sum is 49.

The square root of 688850806 is about 26245.9674235872. The cubic root of 688850806 is about 883.1647439343.

The spelling of 688850806 in words is "six hundred eighty-eight million, eight hundred fifty thousand, eight hundred six".