173044397 has 2 divisors, whose sum is σ = 173044398. Its totient is φ = 173044396.

The previous prime is 173044369. The next prime is 173044409. The reversal of 173044397 is 793440371.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152423716 + 20620681 = 12346^2 + 4541^2 .

It is a cyclic number.

It is not a de Polignac number, because 173044397 - 2⁸ = 173044141 is a prime.

It is equal to p_9663770 and since 173044397 and 9663770 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 173044397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (173044307) 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, 86522198 + 86522199.

It is an arithmetic number, because the mean of its divisors is an integer number (86522199).

Almost surely, 2^173044397 is an apocalyptic number.

It is an amenable number.

173044397 is a deficient number, since it is larger than the sum of its proper divisors (1).

173044397 is an equidigital number, since it uses as much as digits as its factorization.

173044397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 173044397 is about 13154.6340504022. The cubic root of 173044397 is about 557.2531267010.

The spelling of 173044397 in words is "one hundred seventy-three million, forty-four thousand, three hundred ninety-seven".