870009227 has 2 divisors, whose sum is σ = 870009228. Its totient is φ = 870009226.

The previous prime is 870009209. The next prime is 870009229. The reversal of 870009227 is 722900078.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 870009227 - 2²⁶ = 802900363 is a prime.

Together with 870009229, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (870009229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435004613 + 435004614.

It is an arithmetic number, because the mean of its divisors is an integer number (435004614).

Almost surely, 2^870009227 is an apocalyptic number.

870009227 is a deficient number, since it is larger than the sum of its proper divisors (1).

870009227 is an equidigital number, since it uses as much as digits as its factorization.

870009227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 870009227 is about 29495.9188193892. The cubic root of 870009227 is about 954.6436458152.

The spelling of 870009227 in words is "eight hundred seventy million, nine thousand, two hundred twenty-seven".