502172873 has 2 divisors, whose sum is σ = 502172874. Its totient is φ = 502172872.

The previous prime is 502172857. The next prime is 502172887. The reversal of 502172873 is 378271205.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 492262969 + 9909904 = 22187^2 + 3148^2 .

It is a cyclic number.

It is not a de Polignac number, because 502172873 - 2⁴ = 502172857 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (502172833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251086436 + 251086437.

It is an arithmetic number, because the mean of its divisors is an integer number (251086437).

Almost surely, 2^502172873 is an apocalyptic number.

It is an amenable number.

502172873 is a deficient number, since it is larger than the sum of its proper divisors (1).

502172873 is an equidigital number, since it uses as much as digits as its factorization.

502172873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 502172873 is about 22409.2140201302. The cubic root of 502172873 is about 794.8486047957.

The spelling of 502172873 in words is "five hundred two million, one hundred seventy-two thousand, eight hundred seventy-three".