168873688 has 16 divisors (see below), whose sum is σ = 322613280. Its totient is φ = 82843488.

The previous prime is 168873643. The next prime is 168873689. The reversal of 168873688 is 886378861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168873689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198720 + ... + 199567.

It is an arithmetic number, because the mean of its divisors is an integer number (20163330).

Almost surely, 2^168873688 is an apocalyptic number.

It is an amenable number.

168873688 is a deficient number, since it is larger than the sum of its proper divisors (153739592).

168873688 is a wasteful number, since it uses less digits than its factorization.

168873688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398346 (or 398342 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 55.

The square root of 168873688 is about 12995.1409380583. The cubic root of 168873688 is about 552.7397053007.

The spelling of 168873688 in words is "one hundred sixty-eight million, eight hundred seventy-three thousand, six hundred eighty-eight".