688797 has 16 divisors (see below), whose sum is σ = 1034880. Its totient is φ = 452736.

The previous prime is 688783. The next prime is 688799. The reversal of 688797 is 797886.

It is not a de Polignac number, because 688797 - 2⁶ = 688733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (688799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2488 + ... + 2750.

It is an arithmetic number, because the mean of its divisors is an integer number (64680).

2⁶⁸⁸⁷⁹⁷ is an apocalyptic number.

It is an amenable number.

688797 is a deficient number, since it is larger than the sum of its proper divisors (346083).

688797 is a wasteful number, since it uses less digits than its factorization.

688797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369 (or 363 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 688797 is about 829.9379494878. The cubic root of 688797 is about 88.3141748728.

It can be divided in two parts, 68879 and 7, that added together give a palindrome (68886).

The spelling of 688797 in words is "six hundred eighty-eight thousand, seven hundred ninety-seven".