172223329 has 8 divisors (see below), whose sum is σ = 177059232. Its totient is φ = 167417760.

The previous prime is 172223327. The next prime is 172223339. The reversal of 172223329 is 923322271.

172223329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 172223329 - 2¹ = 172223327 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 172223329.

It is not an unprimeable number, because it can be changed into a prime (172223327) 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, 4182 + ... + 19024.

It is an arithmetic number, because the mean of its divisors is an integer number (22132404).

Almost surely, 2^172223329 is an apocalyptic number.

It is an amenable number.

172223329 is a deficient number, since it is larger than the sum of its proper divisors (4835903).

172223329 is a wasteful number, since it uses less digits than its factorization.

172223329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15167.

The product of its digits is 9072, while the sum is 31.

The square root of 172223329 is about 13123.3886248941. The cubic root of 172223329 is about 556.3703700453.

The spelling of 172223329 in words is "one hundred seventy-two million, two hundred twenty-three thousand, three hundred twenty-nine".