172306327 has 2 divisors, whose sum is σ = 172306328. Its totient is φ = 172306326.

The previous prime is 172306319. The next prime is 172306349. The reversal of 172306327 is 723603271.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 172306327 - 2³ = 172306319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172306397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86153163 + 86153164.

It is an arithmetic number, because the mean of its divisors is an integer number (86153164).

Almost surely, 2^172306327 is an apocalyptic number.

172306327 is a deficient number, since it is larger than the sum of its proper divisors (1).

172306327 is an equidigital number, since it uses as much as digits as its factorization.

172306327 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 172306327 is about 13126.5504608027. The cubic root of 172306327 is about 556.4597311717.

Adding to 172306327 its reverse (723603271), we get a palindrome (895909598).

The spelling of 172306327 in words is "one hundred seventy-two million, three hundred six thousand, three hundred twenty-seven".