172273763 has 2 divisors, whose sum is σ = 172273764. Its totient is φ = 172273762.

The previous prime is 172273747. The next prime is 172273769. The reversal of 172273763 is 367372271.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 172273763 - 2⁴ = 172273747 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (172273769) 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, 86136881 + 86136882.

It is an arithmetic number, because the mean of its divisors is an integer number (86136882).

Almost surely, 2^172273763 is an apocalyptic number.

172273763 is a deficient number, since it is larger than the sum of its proper divisors (1).

172273763 is an equidigital number, since it uses as much as digits as its factorization.

172273763 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 74088, while the sum is 38.

The square root of 172273763 is about 13125.3100153863. The cubic root of 172273763 is about 556.4246740409.

The spelling of 172273763 in words is "one hundred seventy-two million, two hundred seventy-three thousand, seven hundred sixty-three".