860214779 has 2 divisors, whose sum is σ = 860214780. Its totient is φ = 860214778.

The previous prime is 860214767. The next prime is 860214781. The reversal of 860214779 is 977412068.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 860214779 - 2¹² = 860210683 is a prime.

It is a Sophie Germain prime.

Together with 860214781, 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 (860214799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 430107389 + 430107390.

It is an arithmetic number, because the mean of its divisors is an integer number (430107390).

Almost surely, 2^860214779 is an apocalyptic number.

860214779 is a deficient number, since it is larger than the sum of its proper divisors (1).

860214779 is an equidigital number, since it uses as much as digits as its factorization.

860214779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 860214779 is about 29329.4183201781. The cubic root of 860214779 is about 951.0477006359.

The spelling of 860214779 in words is "eight hundred sixty million, two hundred fourteen thousand, seven hundred seventy-nine".