8347879 has 2 divisors, whose sum is σ = 8347880. Its totient is φ = 8347878.

The previous prime is 8347849. The next prime is 8347907. The reversal of 8347879 is 9787438.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8347879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8347849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4173939 + 4173940.

It is an arithmetic number, because the mean of its divisors is an integer number (4173940).

Almost surely, 2^8347879 is an apocalyptic number.

8347879 is a deficient number, since it is larger than the sum of its proper divisors (1).

8347879 is an equidigital number, since it uses as much as digits as its factorization.

8347879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 338688, while the sum is 46.

The square root of 8347879 is about 2889.2696308929. The cubic root of 8347879 is about 202.8579575307.

The spelling of 8347879 in words is "eight million, three hundred forty-seven thousand, eight hundred seventy-nine".