723317172 has 24 divisors (see below), whose sum is σ = 1742184192. Its totient is φ = 233328000.

The previous prime is 723317171. The next prime is 723317201. The reversal of 723317172 is 271713327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723317171) 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, 971829 + ... + 972572.

It is an arithmetic number, because the mean of its divisors is an integer number (72591008).

Almost surely, 2^723317172 is an apocalyptic number.

It is an amenable number.

723317172 is an abundant number, since it is smaller than the sum of its proper divisors (1018867020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

723317172 is a wasteful number, since it uses less digits than its factorization.

723317172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1944439 (or 1944437 counting only the distinct ones).

The product of its digits is 12348, while the sum is 33.

The square root of 723317172 is about 26894.5565496068. The cubic root of 723317172 is about 897.6552844133.

The spelling of 723317172 in words is "seven hundred twenty-three million, three hundred seventeen thousand, one hundred seventy-two".