223073172 has 72 divisors (see below), whose sum is σ = 650534976. Its totient is φ = 63131904.

The previous prime is 223073171. The next prime is 223073183. The reversal of 223073172 is 271370322.

It is a happy number.

It is a super-3 number, since 3×223073172³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223073171) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22828 + ... + 31100.

It is an arithmetic number, because the mean of its divisors is an integer number (9035208).

Almost surely, 2^223073172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223073172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325267488).

223073172 is an abundant number, since it is smaller than the sum of its proper divisors (427461804).

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

223073172 is a wasteful number, since it uses less digits than its factorization.

223073172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8397 (or 8392 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 223073172 is about 14935.6343018969. The cubic root of 223073172 is about 606.4790186999.

The spelling of 223073172 in words is "two hundred twenty-three million, seventy-three thousand, one hundred seventy-two".