688348 has 12 divisors (see below), whose sum is σ = 1237432. Its totient is φ = 334800.

The previous prime is 688339. The next prime is 688357. The reversal of 688348 is 843886.

It is an interprime number because it is at equal distance from previous prime (688339) and next prime (688357).

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

688348 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2178 + ... + 2473.

2⁶⁸⁸³⁴⁸ is an apocalyptic number.

It is an amenable number.

688348 is a deficient number, since it is larger than the sum of its proper divisors (549084).

688348 is a wasteful number, since it uses less digits than its factorization.

688348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4692 (or 4690 counting only the distinct ones).

The product of its digits is 36864, while the sum is 37.

The square root of 688348 is about 829.6674032406. The cubic root of 688348 is about 88.2949811753.

The spelling of 688348 in words is "six hundred eighty-eight thousand, three hundred forty-eight".