688710096 has 120 divisors (see below), whose sum is σ = 2018933280. Its totient is φ = 218873088.

The previous prime is 688710089. The next prime is 688710109. The reversal of 688710096 is 690017886.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 345615 + ... + 347601.

It is an arithmetic number, because the mean of its divisors is an integer number (16824444).

Almost surely, 2^688710096 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 688710096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1009466640).

688710096 is an abundant number, since it is smaller than the sum of its proper divisors (1330223184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

688710096 is a wasteful number, since it uses less digits than its factorization.

688710096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2113 (or 2104 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 688710096 is about 26243.2866844075. The cubic root of 688710096 is about 883.1046058161.

The spelling of 688710096 in words is "six hundred eighty-eight million, seven hundred ten thousand, ninety-six".