173057873 has 2 divisors, whose sum is σ = 173057874. Its totient is φ = 173057872.

The previous prime is 173057867. The next prime is 173057887. The reversal of 173057873 is 378750371.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162996289 + 10061584 = 12767^2 + 3172^2 .

It is a cyclic number.

It is not a de Polignac number, because 173057873 - 2⁸ = 173057617 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 173057873.

It is not a weakly prime, because it can be changed into another prime (173057893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86528936 + 86528937.

It is an arithmetic number, because the mean of its divisors is an integer number (86528937).

Almost surely, 2^173057873 is an apocalyptic number.

It is an amenable number.

173057873 is a deficient number, since it is larger than the sum of its proper divisors (1).

173057873 is an equidigital number, since it uses as much as digits as its factorization.

173057873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 123480, while the sum is 41.

The square root of 173057873 is about 13155.1462553633. The cubic root of 173057873 is about 557.2675918678.

The spelling of 173057873 in words is "one hundred seventy-three million, fifty-seven thousand, eight hundred seventy-three".