689885828 has 36 divisors (see below), whose sum is σ = 1278359040. Its totient is φ = 325689936.

The previous prime is 689885827. The next prime is 689885909. The reversal of 689885828 is 828588986.

It is not an unprimeable number, because it can be changed into a prime (689885827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165101 + ... + 169227.

Almost surely, 2^689885828 is an apocalyptic number.

It is an amenable number.

689885828 is a deficient number, since it is larger than the sum of its proper divisors (588473212).

689885828 is a wasteful number, since it uses less digits than its factorization.

689885828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4256 (or 4231 counting only the distinct ones).

The product of its digits is 17694720, while the sum is 62.

The square root of 689885828 is about 26265.6777563420. The cubic root of 689885828 is about 883.6068510368.

The spelling of 689885828 in words is "six hundred eighty-nine million, eight hundred eighty-five thousand, eight hundred twenty-eight".