688252 has 12 divisors (see below), whose sum is σ = 1256976. Its totient is φ = 329120.

The previous prime is 688249. The next prime is 688253. The reversal of 688252 is 252886.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (688253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3649 + ... + 3832.

It is an arithmetic number, because the mean of its divisors is an integer number (104748).

2⁶⁸⁸²⁵² is an apocalyptic number.

It is an amenable number.

688252 is a deficient number, since it is larger than the sum of its proper divisors (568724).

688252 is a wasteful number, since it uses less digits than its factorization.

688252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7508 (or 7506 counting only the distinct ones).

The product of its digits is 7680, while the sum is 31.

The square root of 688252 is about 829.6095467146. The cubic root of 688252 is about 88.2908763174.

The spelling of 688252 in words is "six hundred eighty-eight thousand, two hundred fifty-two".