688002 has 16 divisors (see below), whose sum is σ = 1572672. Its totient is φ = 196560.

The previous prime is 687977. The next prime is 688003. The reversal of 688002 is 200886.

It is not an unprimeable number, because it can be changed into a prime (688003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8149 + ... + 8232.

It is an arithmetic number, because the mean of its divisors is an integer number (98292).

2⁶⁸⁸⁰⁰² is an apocalyptic number.

688002 is an abundant number, since it is smaller than the sum of its proper divisors (884670).

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

688002 is a wasteful number, since it uses less digits than its factorization.

688002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16393.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 688002 is about 829.4588597393. The cubic root of 688002 is about 88.2801847915.

Adding to 688002 its reverse (200886), we get a palindrome (888888).

The spelling of 688002 in words is "six hundred eighty-eight thousand, two".