854867213 has 2 divisors, whose sum is σ = 854867214. Its totient is φ = 854867212.

The previous prime is 854867207. The next prime is 854867239. The reversal of 854867213 is 312768458.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 734789449 + 120077764 = 27107^2 + 10958^2 .

It is a cyclic number.

It is not a de Polignac number, because 854867213 - 2⁶ = 854867149 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_43818578 and since 854867213 and 43818578 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (854867813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427433606 + 427433607.

It is an arithmetic number, because the mean of its divisors is an integer number (427433607).

Almost surely, 2^854867213 is an apocalyptic number.

It is an amenable number.

854867213 is a deficient number, since it is larger than the sum of its proper divisors (1).

854867213 is an equidigital number, since it uses as much as digits as its factorization.

854867213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 322560, while the sum is 44.

The square root of 854867213 is about 29238.1123364693. The cubic root of 854867213 is about 949.0728583419.

The spelling of 854867213 in words is "eight hundred fifty-four million, eight hundred sixty-seven thousand, two hundred thirteen".