689483838 has 8 divisors (see below), whose sum is σ = 1378967688. Its totient is φ = 229827944.

The previous prime is 689483813. The next prime is 689483881. The reversal of 689483838 is 838384986.

It is a sphenic number, since it is the product of 3 distinct primes.

689483838 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 57456981 + ... + 57456992.

It is an arithmetic number, because the mean of its divisors is an integer number (172370961).

Almost surely, 2^689483838 is an apocalyptic number.

689483838 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

689483838 is a wasteful number, since it uses less digits than its factorization.

689483838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114913978.

The product of its digits is 7962624, while the sum is 57.

The square root of 689483838 is about 26258.0242592622. The cubic root of 689483838 is about 883.4351945507.

The spelling of 689483838 in words is "six hundred eighty-nine million, four hundred eighty-three thousand, eight hundred thirty-eight".