173203673 has 2 divisors, whose sum is σ = 173203674. Its totient is φ = 173203672.

The previous prime is 173203663. The next prime is 173203691. The reversal of 173203673 is 376302371.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88416409 + 84787264 = 9403^2 + 9208^2 .

It is a cyclic number.

It is not a de Polignac number, because 173203673 - 2⁶ = 173203609 is a prime.

It is not a weakly prime, because it can be changed into another prime (173203663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86601836 + 86601837.

It is an arithmetic number, because the mean of its divisors is an integer number (86601837).

Almost surely, 2^173203673 is an apocalyptic number.

It is an amenable number.

173203673 is a deficient number, since it is larger than the sum of its proper divisors (1).

173203673 is an equidigital number, since it uses as much as digits as its factorization.

173203673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15876, while the sum is 32.

The square root of 173203673 is about 13160.6866462202. The cubic root of 173203673 is about 557.4240459040.

The spelling of 173203673 in words is "one hundred seventy-three million, two hundred three thousand, six hundred seventy-three".