870050849 has 2 divisors, whose sum is σ = 870050850. Its totient is φ = 870050848.

The previous prime is 870050833. The next prime is 870050851. The reversal of 870050849 is 948050078.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 820249600 + 49801249 = 28640^2 + 7057^2 .

It is a cyclic number.

It is not a de Polignac number, because 870050849 - 2⁴ = 870050833 is a prime.

Together with 870050851, 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 (870050879) 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, 435025424 + 435025425.

It is an arithmetic number, because the mean of its divisors is an integer number (435025425).

Almost surely, 2^870050849 is an apocalyptic number.

It is an amenable number.

870050849 is a deficient number, since it is larger than the sum of its proper divisors (1).

870050849 is an equidigital number, since it uses as much as digits as its factorization.

870050849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 870050849 is about 29496.6243661881. The cubic root of 870050849 is about 954.6588692339.

The spelling of 870050849 in words is "eight hundred seventy million, fifty thousand, eight hundred forty-nine".