688364358 has 64 divisors (see below), whose sum is σ = 1563045120. Its totient is φ = 200188800.

The previous prime is 688364351. The next prime is 688364363. The reversal of 688364358 is 853463886.

It is a self number, because there is not a number n which added to its sum of digits gives 688364358.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (688364351) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 345441 + ... + 347427.

It is an arithmetic number, because the mean of its divisors is an integer number (24422580).

Almost surely, 2^688364358 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 688364358, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (781522560).

688364358 is an abundant number, since it is smaller than the sum of its proper divisors (874680762).

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

688364358 is a wasteful number, since it uses less digits than its factorization.

688364358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2213.

The product of its digits is 3317760, while the sum is 51.

The square root of 688364358 is about 26236.6986871443. The cubic root of 688364358 is about 882.9568058793.

The spelling of 688364358 in words is "six hundred eighty-eight million, three hundred sixty-four thousand, three hundred fifty-eight".