854041679 has 2 divisors, whose sum is σ = 854041680. Its totient is φ = 854041678.

The previous prime is 854041667. The next prime is 854041687. The reversal of 854041679 is 976140458.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-854041679 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (854041649) 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, 427020839 + 427020840.

It is an arithmetic number, because the mean of its divisors is an integer number (427020840).

Almost surely, 2^854041679 is an apocalyptic number.

854041679 is a deficient number, since it is larger than the sum of its proper divisors (1).

854041679 is an equidigital number, since it uses as much as digits as its factorization.

854041679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 854041679 is about 29223.9914967138. The cubic root of 854041679 is about 948.7672575659.

The spelling of 854041679 in words is "eight hundred fifty-four million, forty-one thousand, six hundred seventy-nine".