689836 has 24 divisors (see below), whose sum is σ = 1403136. Its totient is φ = 290640.

The previous prime is 689831. The next prime is 689851. The reversal of 689836 is 638986.

It is not an unprimeable number, because it can be changed into a prime (689831) 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, 1815 + ... + 2161.

It is an arithmetic number, because the mean of its divisors is an integer number (58464).

2⁶⁸⁹⁸³⁶ is an apocalyptic number.

It is an amenable number.

689836 is an abundant number, since it is smaller than the sum of its proper divisors (713300).

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

689836 is a wasteful number, since it uses less digits than its factorization.

689836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429 (or 427 counting only the distinct ones).

The product of its digits is 62208, while the sum is 40.

The square root of 689836 is about 830.5636640258. The cubic root of 689836 is about 88.3585577264.

The spelling of 689836 in words is "six hundred eighty-nine thousand, eight hundred thirty-six".