688873 has 8 divisors (see below), whose sum is σ = 732096. Its totient is φ = 646800.

The previous prime is 688871. The next prime is 688889. The reversal of 688873 is 378886.

688873 is nontrivially palindromic in base 15.

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

It is a cyclic number.

It is not a de Polignac number, because 688873 - 2¹ = 688871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (688871) 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, 1158 + ... + 1648.

It is an arithmetic number, because the mean of its divisors is an integer number (91512).

2⁶⁸⁸⁸⁷³ is an apocalyptic number.

It is an amenable number.

688873 is a deficient number, since it is larger than the sum of its proper divisors (43223).

688873 is a wasteful number, since it uses less digits than its factorization.

688873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575.

The product of its digits is 64512, while the sum is 40.

The square root of 688873 is about 829.9837347804. The cubic root of 688873 is about 88.3174228691.

The spelling of 688873 in words is "six hundred eighty-eight thousand, eight hundred seventy-three".