163723 has 8 divisors (see below), whose sum is σ = 197120. Its totient is φ = 132840.

The previous prime is 163697. The next prime is 163729. The reversal of 163723 is 327361.

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

It is a cyclic number.

It is not a de Polignac number, because 163723 - 2⁹ = 163211 is a prime.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 163694 and 163703.

It is not an unprimeable number, because it can be changed into a prime (163729) 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, 483 + ... + 748.

It is an arithmetic number, because the mean of its divisors is an integer number (24640).

2¹⁶³⁷²³ is an apocalyptic number.

163723 is a deficient number, since it is larger than the sum of its proper divisors (33397).

163723 is a wasteful number, since it uses less digits than its factorization.

163723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257.

The product of its digits is 756, while the sum is 22.

The square root of 163723 is about 404.6269887192. The cubic root of 163723 is about 54.7062019845.

The spelling of 163723 in words is "one hundred sixty-three thousand, seven hundred twenty-three".