8217379 has 2 divisors, whose sum is σ = 8217380. Its totient is φ = 8217378.

The previous prime is 8217373. The next prime is 8217383. The reversal of 8217379 is 9737128.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8217379 - 2⁵ = 8217347 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8217373) 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, 4108689 + 4108690.

It is an arithmetic number, because the mean of its divisors is an integer number (4108690).

Almost surely, 2^8217379 is an apocalyptic number.

8217379 is a deficient number, since it is larger than the sum of its proper divisors (1).

8217379 is an equidigital number, since it uses as much as digits as its factorization.

8217379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 37.

The square root of 8217379 is about 2866.5971115593. The cubic root of 8217379 is about 201.7953274411.

The spelling of 8217379 in words is "eight million, two hundred seventeen thousand, three hundred seventy-nine".