688361466 has 32 divisors (see below), whose sum is σ = 1483675200. Its totient is φ = 211653504.

The previous prime is 688361447. The next prime is 688361473. The reversal of 688361466 is 664163886.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165885 + ... + 169983.

It is an arithmetic number, because the mean of its divisors is an integer number (46364850).

Almost surely, 2^688361466 is an apocalyptic number.

688361466 is an abundant number, since it is smaller than the sum of its proper divisors (795313734).

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

688361466 is a wasteful number, since it uses less digits than its factorization.

688361466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6270.

The product of its digits is 995328, while the sum is 48.

The square root of 688361466 is about 26236.6435734451. The cubic root of 688361466 is about 882.9555693662.

The spelling of 688361466 in words is "six hundred eighty-eight million, three hundred sixty-one thousand, four hundred sixty-six".