8279213 has 2 divisors, whose sum is σ = 8279214. Its totient is φ = 8279212.

The previous prime is 8279209. The next prime is 8279233. The reversal of 8279213 is 3129728.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4959529 + 3319684 = 2227^2 + 1822^2 .

It is a cyclic number.

It is not a de Polignac number, because 8279213 - 2² = 8279209 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8279213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8279203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4139606 + 4139607.

It is an arithmetic number, because the mean of its divisors is an integer number (4139607).

Almost surely, 2^8279213 is an apocalyptic number.

It is an amenable number.

8279213 is a deficient number, since it is larger than the sum of its proper divisors (1).

8279213 is an equidigital number, since it uses as much as digits as its factorization.

8279213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 32.

The square root of 8279213 is about 2877.3621600348. The cubic root of 8279213 is about 202.3002185525.

The spelling of 8279213 in words is "eight million, two hundred seventy-nine thousand, two hundred thirteen".