688212343 has 16 divisors (see below), whose sum is σ = 896857920. Its totient is φ = 512487936.

The previous prime is 688212341. The next prime is 688212353. The reversal of 688212343 is 343212886.

It is a cyclic number.

It is not a de Polignac number, because 688212343 - 2¹ = 688212341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (688212341) 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, 220888 + ... + 223981.

It is an arithmetic number, because the mean of its divisors is an integer number (56053620).

Almost surely, 2^688212343 is an apocalyptic number.

688212343 is a deficient number, since it is larger than the sum of its proper divisors (208645577).

688212343 is a wasteful number, since it uses less digits than its factorization.

688212343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444906.

The product of its digits is 55296, while the sum is 37.

The square root of 688212343 is about 26233.8015354237. The cubic root of 688212343 is about 882.8918051478.

The spelling of 688212343 in words is "six hundred eighty-eight million, two hundred twelve thousand, three hundred forty-three".