8479717 has 2 divisors, whose sum is σ = 8479718. Its totient is φ = 8479716.

The previous prime is 8479703. The next prime is 8479733. The reversal of 8479717 is 7179748.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6558721 + 1920996 = 2561^2 + 1386^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8479717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8479747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4239858 + 4239859.

It is an arithmetic number, because the mean of its divisors is an integer number (4239859).

Almost surely, 2^8479717 is an apocalyptic number.

It is an amenable number.

8479717 is a deficient number, since it is larger than the sum of its proper divisors (1).

8479717 is an equidigital number, since it uses as much as digits as its factorization.

8479717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 98784, while the sum is 43.

The square root of 8479717 is about 2911.9953640073. The cubic root of 8479717 is about 203.9202959810.

The spelling of 8479717 in words is "eight million, four hundred seventy-nine thousand, seven hundred seventeen".