688480443 has 24 divisors (see below), whose sum is σ = 1137547008. Its totient is φ = 393068592.

The previous prime is 688480391. The next prime is 688480451. The reversal of 688480443 is 344084886.

It is not a de Polignac number, because 688480443 - 2¹⁰ = 688479419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (688480493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77896 + ... + 86282.

It is an arithmetic number, because the mean of its divisors is an integer number (47397792).

Almost surely, 2^688480443 is an apocalyptic number.

688480443 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

688480443 is a deficient number, since it is larger than the sum of its proper divisors (449066565).

688480443 is a wasteful number, since it uses less digits than its factorization.

688480443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9703 (or 9700 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 45.

The square root of 688480443 is about 26238.9108577319. The cubic root of 688480443 is about 883.0064367076.

The spelling of 688480443 in words is "six hundred eighty-eight million, four hundred eighty thousand, four hundred forty-three".