7862213 has 2 divisors, whose sum is σ = 7862214. Its totient is φ = 7862212.

The previous prime is 7862209. The next prime is 7862233. The reversal of 7862213 is 3122687.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7409284 + 452929 = 2722^2 + 673^2 .

It is a cyclic number.

It is not a de Polignac number, because 7862213 - 2² = 7862209 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 7⁸ + 8 + 6 + 2 + 2²¹ + 1 + 3⁵ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7862233) 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, 3931106 + 3931107.

It is an arithmetic number, because the mean of its divisors is an integer number (3931107).

Almost surely, 2^7862213 is an apocalyptic number.

It is an amenable number.

7862213 is a deficient number, since it is larger than the sum of its proper divisors (1).

7862213 is an equidigital number, since it uses as much as digits as its factorization.

7862213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 29.

The square root of 7862213 is about 2803.9638014782. The cubic root of 7862213 is about 198.8451190864.

The spelling of 7862213 in words is "seven million, eight hundred sixty-two thousand, two hundred thirteen".