8173201 has 2 divisors, whose sum is σ = 8173202. Its totient is φ = 8173200.

The previous prime is 8173199. The next prime is 8173219. The reversal of 8173201 is 1023718.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5400976 + 2772225 = 2324^2 + 1665^2 .

It is a cyclic number.

It is not a de Polignac number, because 8173201 - 2¹ = 8173199 is a prime.

Together with 8173199, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (8173001) 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, 4086600 + 4086601.

It is an arithmetic number, because the mean of its divisors is an integer number (4086601).

Almost surely, 2^8173201 is an apocalyptic number.

It is an amenable number.

8173201 is a deficient number, since it is larger than the sum of its proper divisors (1).

8173201 is an equidigital number, since it uses as much as digits as its factorization.

8173201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 8173201 is about 2858.8810748263. The cubic root of 8173201 is about 201.4330489950.

Adding to 8173201 its reverse (1023718), we get a palindrome (9196919).

The spelling of 8173201 in words is "eight million, one hundred seventy-three thousand, two hundred one".