168630872 has 16 divisors (see below), whose sum is σ = 320186400. Its totient is φ = 83247840.

The previous prime is 168630863. The next prime is 168630887. The reversal of 168630872 is 278036861.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132779 + ... + 134042.

It is an arithmetic number, because the mean of its divisors is an integer number (20011650).

Almost surely, 2^168630872 is an apocalyptic number.

It is an amenable number.

168630872 is a deficient number, since it is larger than the sum of its proper divisors (151555528).

168630872 is a wasteful number, since it uses less digits than its factorization.

168630872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266906 (or 266902 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 168630872 is about 12985.7950083928. The cubic root of 168630872 is about 552.4746582427.

The spelling of 168630872 in words is "one hundred sixty-eight million, six hundred thirty thousand, eight hundred seventy-two".