172876273 has 2 divisors, whose sum is σ = 172876274. Its totient is φ = 172876272.

The previous prime is 172876271. The next prime is 172876283. The reversal of 172876273 is 372678271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 160959969 + 11916304 = 12687^2 + 3452^2 .

It is a cyclic number.

It is not a de Polignac number, because 172876273 - 2¹ = 172876271 is a prime.

Together with 172876271, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (172876271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86438136 + 86438137.

It is an arithmetic number, because the mean of its divisors is an integer number (86438137).

Almost surely, 2^172876273 is an apocalyptic number.

It is an amenable number.

172876273 is a deficient number, since it is larger than the sum of its proper divisors (1).

172876273 is an equidigital number, since it uses as much as digits as its factorization.

172876273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 197568, while the sum is 43.

The square root of 172876273 is about 13148.2422019067. The cubic root of 172876273 is about 557.0725988829.

The spelling of 172876273 in words is "one hundred seventy-two million, eight hundred seventy-six thousand, two hundred seventy-three".