672686168 has 32 divisors (see below), whose sum is σ = 1572514560. Its totient is φ = 262085280.

The previous prime is 672686153. The next prime is 672686171. The reversal of 672686168 is 861686276.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 545396 + ... + 546627.

It is an arithmetic number, because the mean of its divisors is an integer number (49141080).

Almost surely, 2^672686168 is an apocalyptic number.

It is an amenable number.

672686168 is an abundant number, since it is smaller than the sum of its proper divisors (899828392).

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

672686168 is a wasteful number, since it uses less digits than its factorization.

672686168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092047 (or 1092043 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 50.

The square root of 672686168 is about 25936.1941695384. The cubic root of 672686168 is about 876.2018501655.

The spelling of 672686168 in words is "six hundred seventy-two million, six hundred eighty-six thousand, one hundred sixty-eight".