8279549 has 2 divisors, whose sum is σ = 8279550. Its totient is φ = 8279548.

The previous prime is 8279543. The next prime is 8279569. The reversal of 8279549 is 9459728.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8265625 + 13924 = 2875^2 + 118^2 .

It is a cyclic number.

It is not a de Polignac number, because 8279549 - 2⁴ = 8279533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8279543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4139774 + 4139775.

It is an arithmetic number, because the mean of its divisors is an integer number (4139775).

Almost surely, 2^8279549 is an apocalyptic number.

It is an amenable number.

8279549 is a deficient number, since it is larger than the sum of its proper divisors (1).

8279549 is an equidigital number, since it uses as much as digits as its factorization.

8279549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 44.

The square root of 8279549 is about 2877.4205462532. The cubic root of 8279549 is about 202.3029552037.

The spelling of 8279549 in words is "eight million, two hundred seventy-nine thousand, five hundred forty-nine".