872818241 has 2 divisors, whose sum is σ = 872818242. Its totient is φ = 872818240.

The previous prime is 872818231. The next prime is 872818259. The reversal of 872818241 is 142818278.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 504945841 + 367872400 = 22471^2 + 19180^2 .

It is a cyclic number.

It is not a de Polignac number, because 872818241 - 2¹⁴ = 872801857 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (872818231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436409120 + 436409121.

It is an arithmetic number, because the mean of its divisors is an integer number (436409121).

Almost surely, 2^872818241 is an apocalyptic number.

It is an amenable number.

872818241 is a deficient number, since it is larger than the sum of its proper divisors (1).

872818241 is an equidigital number, since it uses as much as digits as its factorization.

872818241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57344, while the sum is 41.

The square root of 872818241 is about 29543.4974402152. The cubic root of 872818241 is about 955.6699669153.

The spelling of 872818241 in words is "eight hundred seventy-two million, eight hundred eighteen thousand, two hundred forty-one".