8479649 has 2 divisors, whose sum is σ = 8479650. Its totient is φ = 8479648.

The previous prime is 8479631. The next prime is 8479699. The reversal of 8479649 is 9469748.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5094049 + 3385600 = 2257^2 + 1840^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8479649 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8479609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4239824 + 4239825.

It is an arithmetic number, because the mean of its divisors is an integer number (4239825).

Almost surely, 2^8479649 is an apocalyptic number.

It is an amenable number.

8479649 is a deficient number, since it is larger than the sum of its proper divisors (1).

8479649 is an equidigital number, since it uses as much as digits as its factorization.

8479649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 47.

The square root of 8479649 is about 2911.9836881411. The cubic root of 8479649 is about 203.9197508914.

Subtracting 8479649 from its reverse (9469748), we obtain a palindrome (990099).

The spelling of 8479649 in words is "eight million, four hundred seventy-nine thousand, six hundred forty-nine".