688675606 has 8 divisors (see below), whose sum is σ = 1058208984. Its totient is φ = 335939280.

The previous prime is 688675597. The next prime is 688675607. The reversal of 688675606 is 606576886.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-4 number, since 4×688675606⁴ (a number of 36 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (688675607) 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 3 ways as a sum of consecutive naturals, for example, 4199160 + ... + 4199323.

It is an arithmetic number, because the mean of its divisors is an integer number (132276123).

Almost surely, 2^688675606 is an apocalyptic number.

688675606 is a deficient number, since it is larger than the sum of its proper divisors (369533378).

688675606 is a wasteful number, since it uses less digits than its factorization.

688675606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8398526.

The product of its (nonzero) digits is 2903040, while the sum is 52.

The square root of 688675606 is about 26242.6295557438. The cubic root of 688675606 is about 883.0898638676.

The spelling of 688675606 in words is "six hundred eighty-eight million, six hundred seventy-five thousand, six hundred six".