872127211 has 2 divisors, whose sum is σ = 872127212. Its totient is φ = 872127210.

The previous prime is 872127169. The next prime is 872127229. The reversal of 872127211 is 112721278.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 872127211 - 2⁷ = 872127083 is a prime.

It is equal to p_44657140 and since 872127211 and 44657140 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (872127241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436063605 + 436063606.

It is an arithmetic number, because the mean of its divisors is an integer number (436063606).

Almost surely, 2^872127211 is an apocalyptic number.

872127211 is a deficient number, since it is larger than the sum of its proper divisors (1).

872127211 is an equidigital number, since it uses as much as digits as its factorization.

872127211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3136, while the sum is 31.

The square root of 872127211 is about 29531.7999959366. The cubic root of 872127211 is about 955.4176917960.

Adding to 872127211 its reverse (112721278), we get a palindrome (984848489).

The spelling of 872127211 in words is "eight hundred seventy-two million, one hundred twenty-seven thousand, two hundred eleven".