688568099 has 8 divisors (see below), whose sum is σ = 695291472. Its totient is φ = 681856000.

The previous prime is 688568093. The next prime is 688568107. The reversal of 688568099 is 990865886.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 688568099 - 2¹² = 688564003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (688568093) 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, 170099 + ... + 174099.

It is an arithmetic number, because the mean of its divisors is an integer number (86911434).

Almost surely, 2^688568099 is an apocalyptic number.

688568099 is a deficient number, since it is larger than the sum of its proper divisors (6723373).

688568099 is a wasteful number, since it uses less digits than its factorization.

688568099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5637.

The product of its (nonzero) digits is 7464960, while the sum is 59.

The square root of 688568099 is about 26240.5811482901. The cubic root of 688568099 is about 883.0439093419.

The spelling of 688568099 in words is "six hundred eighty-eight million, five hundred sixty-eight thousand, ninety-nine".