172227623 has 2 divisors, whose sum is σ = 172227624. Its totient is φ = 172227622.

The previous prime is 172227589. The next prime is 172227631. The reversal of 172227623 is 326722271.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 172227623 - 2¹⁶ = 172162087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 172227623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172226623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86113811 + 86113812.

It is an arithmetic number, because the mean of its divisors is an integer number (86113812).

Almost surely, 2^172227623 is an apocalyptic number.

172227623 is a deficient number, since it is larger than the sum of its proper divisors (1).

172227623 is an equidigital number, since it uses as much as digits as its factorization.

172227623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112, while the sum is 32.

The square root of 172227623 is about 13123.5522249123. The cubic root of 172227623 is about 556.3749939534.

Adding to 172227623 its reverse (326722271), we get a palindrome (498949894).

The spelling of 172227623 in words is "one hundred seventy-two million, two hundred twenty-seven thousand, six hundred twenty-three".