688388485 has 16 divisors (see below), whose sum is σ = 841622400. Its totient is φ = 540403776.

The previous prime is 688388453. The next prime is 688388501. The reversal of 688388485 is 584883886.

688388485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 688388485 - 2⁵ = 688388453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86296 + ... + 93934.

It is an arithmetic number, because the mean of its divisors is an integer number (52601400).

Almost surely, 2^688388485 is an apocalyptic number.

It is an amenable number.

688388485 is a deficient number, since it is larger than the sum of its proper divisors (153233915).

688388485 is a wasteful number, since it uses less digits than its factorization.

688388485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7980.

The product of its digits is 11796480, while the sum is 58.

The square root of 688388485 is about 26237.1584780060. The cubic root of 688388485 is about 882.9671215645.

The spelling of 688388485 in words is "six hundred eighty-eight million, three hundred eighty-eight thousand, four hundred eighty-five".