8434213 has 2 divisors, whose sum is σ = 8434214. Its totient is φ = 8434212.

The previous prime is 8434199. The next prime is 8434219. The reversal of 8434213 is 3124348.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7656289 + 777924 = 2767^2 + 882^2 .

It is a cyclic number.

It is not a de Polignac number, because 8434213 - 2¹³ = 8426021 is a prime.

It is a super-2 number, since 2×8434213² = 142271897858738, which contains 22 as substring.

8434213 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8434219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4217106 + 4217107.

It is an arithmetic number, because the mean of its divisors is an integer number (4217107).

Almost surely, 2^8434213 is an apocalyptic number.

It is an amenable number.

8434213 is a deficient number, since it is larger than the sum of its proper divisors (1).

8434213 is an equidigital number, since it uses as much as digits as its factorization.

8434213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 25.

The square root of 8434213 is about 2904.1716547064. The cubic root of 8434213 is about 203.5548813940.

The spelling of 8434213 in words is "eight million, four hundred thirty-four thousand, two hundred thirteen".