688274 has 16 divisors (see below), whose sum is σ = 1083456. Its totient is φ = 327600.

The previous prime is 688253. The next prime is 688277. The reversal of 688274 is 472886.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 688274.

It is not an unprimeable number, because it can be changed into a prime (688277) 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, 5189 + ... + 5319.

It is an arithmetic number, because the mean of its divisors is an integer number (67716).

2⁶⁸⁸²⁷⁴ is an apocalyptic number.

688274 is a deficient number, since it is larger than the sum of its proper divisors (395182).

688274 is a wasteful number, since it uses less digits than its factorization.

688274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241.

The product of its digits is 21504, while the sum is 35.

The square root of 688274 is about 829.6228058582. The cubic root of 688274 is about 88.2918170477.

The spelling of 688274 in words is "six hundred eighty-eight thousand, two hundred seventy-four".