172830841 has 2 divisors, whose sum is σ = 172830842. Its totient is φ = 172830840.

The previous prime is 172830829. The next prime is 172830863. The reversal of 172830841 is 148038271.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100580841 + 72250000 = 10029^2 + 8500^2 .

It is a cyclic number.

It is not a de Polignac number, because 172830841 - 2¹¹ = 172828793 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 172830797 and 172830806.

It is not a weakly prime, because it can be changed into another prime (172830881) 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, 86415420 + 86415421.

It is an arithmetic number, because the mean of its divisors is an integer number (86415421).

Almost surely, 2^172830841 is an apocalyptic number.

It is an amenable number.

172830841 is a deficient number, since it is larger than the sum of its proper divisors (1).

172830841 is an equidigital number, since it uses as much as digits as its factorization.

172830841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 172830841 is about 13146.5144049668. The cubic root of 172830841 is about 557.0237949237.

The spelling of 172830841 in words is "one hundred seventy-two million, eight hundred thirty thousand, eight hundred forty-one".