688373364 has 72 divisors (see below), whose sum is σ = 1881058368. Its totient is φ = 195350400.

The previous prime is 688373341. The next prime is 688373423. The reversal of 688373364 is 463373886.

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, 84912 + ... + 92664.

Almost surely, 2^688373364 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 688373364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (940529184).

688373364 is an abundant number, since it is smaller than the sum of its proper divisors (1192685004).

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

688373364 is a wasteful number, since it uses less digits than its factorization.

688373364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7925 (or 7916 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 48.

The square root of 688373364 is about 26236.8703164078. The cubic root of 688373364 is about 882.9606564924.

The spelling of 688373364 in words is "six hundred eighty-eight million, three hundred seventy-three thousand, three hundred sixty-four".