943213 has 2 divisors, whose sum is σ = 943214. Its totient is φ = 943212.

The previous prime is 943199. The next prime is 943219. The reversal of 943213 is 312349.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 842724 + 100489 = 918^2 + 317^2 .

It is an emirp because it is prime and its reverse (312349) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 943213 - 2¹³ = 935021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (943219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 471606 + 471607.

It is an arithmetic number, because the mean of its divisors is an integer number (471607).

2⁹⁴³²¹³ is an apocalyptic number.

It is an amenable number.

943213 is a deficient number, since it is larger than the sum of its proper divisors (1).

943213 is an equidigital number, since it uses as much as digits as its factorization.

943213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 22.

The square root of 943213 is about 971.1915362069. The cubic root of 943213 is about 98.0700942376.

It can be divided in two parts, 943 and 213, that added together give a square (1156 = 34²).

The spelling of 943213 in words is "nine hundred forty-three thousand, two hundred thirteen".