7916213 has 2 divisors, whose sum is σ = 7916214. Its totient is φ = 7916212.

The previous prime is 7916197. The next prime is 7916263. The reversal of 7916213 is 3126197.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6646084 + 1270129 = 2578^2 + 1127^2 .

It is a cyclic number.

It is not a de Polignac number, because 7916213 - 2⁴ = 7916197 is a prime.

It is a super-2 number, since 2×7916213² = 125332856522738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7916263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3958106 + 3958107.

It is an arithmetic number, because the mean of its divisors is an integer number (3958107).

Almost surely, 2^7916213 is an apocalyptic number.

It is an amenable number.

7916213 is a deficient number, since it is larger than the sum of its proper divisors (1).

7916213 is an equidigital number, since it uses as much as digits as its factorization.

7916213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268, while the sum is 29.

The square root of 7916213 is about 2813.5765495184. The cubic root of 7916213 is about 199.2993231262.

The spelling of 7916213 in words is "seven million, nine hundred sixteen thousand, two hundred thirteen".