609803609 has 2 divisors, whose sum is σ = 609803610. Its totient is φ = 609803608.

The previous prime is 609803587. The next prime is 609803627. The reversal of 609803609 is 906308906.

609803609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 477553609 + 132250000 = 21853^2 + 11500^2 .

It is a cyclic number.

It is not a de Polignac number, because 609803609 - 2²⁰ = 608755033 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (609803629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304901804 + 304901805.

It is an arithmetic number, because the mean of its divisors is an integer number (304901805).

Almost surely, 2^609803609 is an apocalyptic number.

It is an amenable number.

609803609 is a deficient number, since it is larger than the sum of its proper divisors (1).

609803609 is an equidigital number, since it uses as much as digits as its factorization.

609803609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 609803609 is about 24694.2019308177. The cubic root of 609803609 is about 848.0015839126.

The spelling of 609803609 in words is "six hundred nine million, eight hundred three thousand, six hundred nine".