688885361 has 8 divisors (see below), whose sum is σ = 702359424. Its totient is φ = 675429040.

The previous prime is 688885333. The next prime is 688885369. The reversal of 688885361 is 163588886.

688885361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 688885361 - 2¹⁴ = 688868977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (688885369) 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, 95690 + ... + 102636.

It is an arithmetic number, because the mean of its divisors is an integer number (87794928).

Almost surely, 2^688885361 is an apocalyptic number.

It is an amenable number.

688885361 is a deficient number, since it is larger than the sum of its proper divisors (13474063).

688885361 is a wasteful number, since it uses less digits than its factorization.

688885361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8871.

The product of its digits is 2211840, while the sum is 53.

The square root of 688885361 is about 26246.6257069361. The cubic root of 688885361 is about 883.1795111607.

The spelling of 688885361 in words is "six hundred eighty-eight million, eight hundred eighty-five thousand, three hundred sixty-one".