172607233 has 2 divisors, whose sum is σ = 172607234. Its totient is φ = 172607232.

The previous prime is 172607231. The next prime is 172607261. The reversal of 172607233 is 332706271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99042304 + 73564929 = 9952^2 + 8577^2 .

It is an emirp because it is prime and its reverse (332706271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 172607233 - 2¹ = 172607231 is a prime.

Together with 172607231, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 172607195 and 172607204.

It is not a weakly prime, because it can be changed into another prime (172607231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86303616 + 86303617.

It is an arithmetic number, because the mean of its divisors is an integer number (86303617).

Almost surely, 2^172607233 is an apocalyptic number.

It is an amenable number.

172607233 is a deficient number, since it is larger than the sum of its proper divisors (1).

172607233 is an equidigital number, since it uses as much as digits as its factorization.

172607233 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 172607233 is about 13138.0071928737. The cubic root of 172607233 is about 556.7834660354.

The spelling of 172607233 in words is "one hundred seventy-two million, six hundred seven thousand, two hundred thirty-three".