867025213 has 2 divisors, whose sum is σ = 867025214. Its totient is φ = 867025212.

The previous prime is 867025207. The next prime is 867025231. The reversal of 867025213 is 312520768.

It is a happy number.

Together with next prime (867025231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 656281924 + 210743289 = 25618^2 + 14517^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-867025213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (867022213) 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, 433512606 + 433512607.

It is an arithmetic number, because the mean of its divisors is an integer number (433512607).

Almost surely, 2^867025213 is an apocalyptic number.

It is an amenable number.

867025213 is a deficient number, since it is larger than the sum of its proper divisors (1).

867025213 is an equidigital number, since it uses as much as digits as its factorization.

867025213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 867025213 is about 29445.2918647447. The cubic root of 867025213 is about 953.5509627391.

The spelling of 867025213 in words is "eight hundred sixty-seven million, twenty-five thousand, two hundred thirteen".