168936723 has 12 divisors (see below), whose sum is σ = 249695160. Its totient is φ = 110005056.

The previous prime is 168936697. The next prime is 168936731. The reversal of 168936723 is 327639861.

It is not a de Polignac number, because 168936723 - 2⁹ = 168936211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (168936743) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 217878 + ... + 218651.

It is an arithmetic number, because the mean of its divisors is an integer number (20807930).

Almost surely, 2^168936723 is an apocalyptic number.

168936723 is a deficient number, since it is larger than the sum of its proper divisors (80758437).

168936723 is a wasteful number, since it uses less digits than its factorization.

168936723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436578 (or 436575 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 168936723 is about 12997.5660413787. The cubic root of 168936723 is about 552.8084699367.

The spelling of 168936723 in words is "one hundred sixty-eight million, nine hundred thirty-six thousand, seven hundred twenty-three".