493943213 has 2 divisors, whose sum is σ = 493943214. Its totient is φ = 493943212.

The previous prime is 493943189. The next prime is 493943231. The reversal of 493943213 is 312349394.

It is a happy number.

Together with next prime (493943231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 389944009 + 103999204 = 19747^2 + 10198^2 .

It is a cyclic number.

It is not a de Polignac number, because 493943213 - 2²⁶ = 426834349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (493943293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246971606 + 246971607.

It is an arithmetic number, because the mean of its divisors is an integer number (246971607).

Almost surely, 2^493943213 is an apocalyptic number.

It is an amenable number.

493943213 is a deficient number, since it is larger than the sum of its proper divisors (1).

493943213 is an equidigital number, since it uses as much as digits as its factorization.

493943213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 38.

The square root of 493943213 is about 22224.8332502181. The cubic root of 493943213 is about 790.4826474387.

The spelling of 493943213 in words is "four hundred ninety-three million, nine hundred forty-three thousand, two hundred thirteen".