168723797 has 8 divisors (see below), whose sum is σ = 186131520. Its totient is φ = 151660960.

The previous prime is 168723773. The next prime is 168723817. The reversal of 168723797 is 797327861.

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

It is a de Polignac number, because none of the positive numbers 2^k-168723797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168723727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85193 + ... + 87150.

It is an arithmetic number, because the mean of its divisors is an integer number (23266440).

Almost surely, 2^168723797 is an apocalyptic number.

It is an amenable number.

168723797 is a deficient number, since it is larger than the sum of its proper divisors (17407723).

168723797 is a wasteful number, since it uses less digits than its factorization.

168723797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172443.

The product of its digits is 889056, while the sum is 50.

The square root of 168723797 is about 12989.3724636720. The cubic root of 168723797 is about 552.5761210407.

The spelling of 168723797 in words is "one hundred sixty-eight million, seven hundred twenty-three thousand, seven hundred ninety-seven".