870364843 has 2 divisors, whose sum is σ = 870364844. Its totient is φ = 870364842.

The previous prime is 870364841. The next prime is 870364867. The reversal of 870364843 is 348463078.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 870364843 - 2¹ = 870364841 is a prime.

Together with 870364841, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 870364843.

It is not a weakly prime, because it can be changed into another prime (870364841) 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, 435182421 + 435182422.

It is an arithmetic number, because the mean of its divisors is an integer number (435182422).

Almost surely, 2^870364843 is an apocalyptic number.

870364843 is a deficient number, since it is larger than the sum of its proper divisors (1).

870364843 is an equidigital number, since it uses as much as digits as its factorization.

870364843 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 43.

The square root of 870364843 is about 29501.9464273122. The cubic root of 870364843 is about 954.7736981946.

The spelling of 870364843 in words is "eight hundred seventy million, three hundred sixty-four thousand, eight hundred forty-three".