8479561 has 2 divisors, whose sum is σ = 8479562. Its totient is φ = 8479560.

The previous prime is 8479553. The next prime is 8479573. The reversal of 8479561 is 1659748.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6405961 + 2073600 = 2531^2 + 1440^2 .

It is a cyclic number.

It is not a de Polignac number, because 8479561 - 2³ = 8479553 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8479511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4239780 + 4239781.

It is an arithmetic number, because the mean of its divisors is an integer number (4239781).

Almost surely, 2^8479561 is an apocalyptic number.

It is an amenable number.

8479561 is a deficient number, since it is larger than the sum of its proper divisors (1).

8479561 is an equidigital number, since it uses as much as digits as its factorization.

8479561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 40.

The square root of 8479561 is about 2911.9685781272. The cubic root of 8479561 is about 203.9190454769.

The spelling of 8479561 in words is "eight million, four hundred seventy-nine thousand, five hundred sixty-one".