609000409 has 2 divisors, whose sum is σ = 609000410. Its totient is φ = 609000408.

The previous prime is 609000397. The next prime is 609000439. The reversal of 609000409 is 904000906.

609000409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 579461184 + 29539225 = 24072^2 + 5435^2 .

It is a cyclic number.

It is not a de Polignac number, because 609000409 - 2⁷ = 609000281 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (609000439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304500204 + 304500205.

It is an arithmetic number, because the mean of its divisors is an integer number (304500205).

Almost surely, 2^609000409 is an apocalyptic number.

It is an amenable number.

609000409 is a deficient number, since it is larger than the sum of its proper divisors (1).

609000409 is an equidigital number, since it uses as much as digits as its factorization.

609000409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 609000409 is about 24677.9336452629. The cubic root of 609000409 is about 847.6291065425.

The spelling of 609000409 in words is "six hundred nine million, four hundred nine", and thus it is an aban number.