172324216 has 16 divisors (see below), whose sum is σ = 323270640. Its totient is φ = 86118720.

The previous prime is 172324213. The next prime is 172324219. The reversal of 172324216 is 612423271.

172324216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (172324213) and next prime (172324219).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172324213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16821 + ... + 25051.

It is an arithmetic number, because the mean of its divisors is an integer number (20204415).

Almost surely, 2^172324216 is an apocalyptic number.

It is an amenable number.

172324216 is a deficient number, since it is larger than the sum of its proper divisors (150946424).

172324216 is a wasteful number, since it uses less digits than its factorization.

172324216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10854 (or 10850 counting only the distinct ones).

The product of its digits is 4032, while the sum is 28.

The square root of 172324216 is about 13127.2318483373. The cubic root of 172324216 is about 556.4789878908.

Adding to 172324216 its reverse (612423271), we get a palindrome (784747487).

The spelling of 172324216 in words is "one hundred seventy-two million, three hundred twenty-four thousand, two hundred sixteen".