800211187 has 2 divisors, whose sum is σ = 800211188. Its totient is φ = 800211186.

The previous prime is 800211161. The next prime is 800211221. The reversal of 800211187 is 781112008.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 800211187 - 2¹¹ = 800209139 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (800211107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400105593 + 400105594.

It is an arithmetic number, because the mean of its divisors is an integer number (400105594).

Almost surely, 2^800211187 is an apocalyptic number.

800211187 is a deficient number, since it is larger than the sum of its proper divisors (1).

800211187 is an equidigital number, since it uses as much as digits as its factorization.

800211187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 28.

The square root of 800211187 is about 28288.0042951071. The cubic root of 800211187 is about 928.3994464707.

The spelling of 800211187 in words is "eight hundred million, two hundred eleven thousand, one hundred eighty-seven".