688853387 has 8 divisors (see below), whose sum is σ = 711672192. Its totient is φ = 666072000.

The previous prime is 688853351. The next prime is 688853411. The reversal of 688853387 is 783358886.

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 688853387 - 2⁶ = 688853323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (688856387) 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 7 ways as a sum of consecutive naturals, for example, 30887 + ... + 48287.

It is an arithmetic number, because the mean of its divisors is an integer number (88959024).

Almost surely, 2^688853387 is an apocalyptic number.

688853387 is a deficient number, since it is larger than the sum of its proper divisors (22818805).

688853387 is a wasteful number, since it uses less digits than its factorization.

688853387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18709.

The product of its digits is 7741440, while the sum is 56.

The square root of 688853387 is about 26246.0165929994. The cubic root of 688853387 is about 883.1658469527.

The spelling of 688853387 in words is "six hundred eighty-eight million, eight hundred fifty-three thousand, three hundred eighty-seven".