853745279 has 2 divisors, whose sum is σ = 853745280. Its totient is φ = 853745278.

The previous prime is 853745273. The next prime is 853745311. The reversal of 853745279 is 972547358.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 853745279 - 2²⁰ = 852696703 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (853745273) 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, 426872639 + 426872640.

It is an arithmetic number, because the mean of its divisors is an integer number (426872640).

Almost surely, 2^853745279 is an apocalyptic number.

853745279 is a deficient number, since it is larger than the sum of its proper divisors (1).

853745279 is an equidigital number, since it uses as much as digits as its factorization.

853745279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2116800, while the sum is 50.

The square root of 853745279 is about 29218.9198807896. The cubic root of 853745279 is about 948.6574865166.

The spelling of 853745279 in words is "eight hundred fifty-three million, seven hundred forty-five thousand, two hundred seventy-nine".