13173723 has 12 divisors (see below), whose sum is σ = 19136208. Its totient is φ = 8732880.

The previous prime is 13173709. The next prime is 13173749. The reversal of 13173723 is 32737131.

13173723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13173723 - 2⁸ = 13173467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13173763) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2415 + ... + 5672.

It is an arithmetic number, because the mean of its divisors is an integer number (1594684).

Almost surely, 2^13173723 is an apocalyptic number.

13173723 is a deficient number, since it is larger than the sum of its proper divisors (5962485).

13173723 is a wasteful number, since it uses less digits than its factorization.

13173723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8274 (or 8271 counting only the distinct ones).

The product of its digits is 2646, while the sum is 27.

The square root of 13173723 is about 3629.5623703141. The cubic root of 13173723 is about 236.1762245495.

The spelling of 13173723 in words is "thirteen million, one hundred seventy-three thousand, seven hundred twenty-three".