172223327 has 2 divisors, whose sum is σ = 172223328. Its totient is φ = 172223326.

The previous prime is 172223309. The next prime is 172223339. The reversal of 172223327 is 723322271.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 172223327 - 2¹⁴ = 172206943 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 172223327.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172223347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86111663 + 86111664.

It is an arithmetic number, because the mean of its divisors is an integer number (86111664).

Almost surely, 2^172223327 is an apocalyptic number.

172223327 is a deficient number, since it is larger than the sum of its proper divisors (1).

172223327 is an equidigital number, since it uses as much as digits as its factorization.

172223327 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7056, while the sum is 29.

The square root of 172223327 is about 13123.3885486943. The cubic root of 172223327 is about 556.3703678917.

Adding to 172223327 its reverse (723322271), we get a palindrome (895545598).

The spelling of 172223327 in words is "one hundred seventy-two million, two hundred twenty-three thousand, three hundred twenty-seven".