8575409 has 2 divisors, whose sum is σ = 8575410. Its totient is φ = 8575408.

The previous prime is 8575393. The next prime is 8575423. The reversal of 8575409 is 9045758.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6265009 + 2310400 = 2503^2 + 1520^2 .

It is a cyclic number.

It is not a de Polignac number, because 8575409 - 2⁴ = 8575393 is a prime.

It is not a weakly prime, because it can be changed into another prime (8575439) 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, 4287704 + 4287705.

It is an arithmetic number, because the mean of its divisors is an integer number (4287705).

Almost surely, 2^8575409 is an apocalyptic number.

It is an amenable number.

8575409 is a deficient number, since it is larger than the sum of its proper divisors (1).

8575409 is an equidigital number, since it uses as much as digits as its factorization.

8575409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 8575409 is about 2928.3799275367. The cubic root of 8575409 is about 204.6844958361.

The spelling of 8575409 in words is "eight million, five hundred seventy-five thousand, four hundred nine".