605434809 has 8 divisors (see below), whose sum is σ = 922567360. Its totient is φ = 345962736.

The previous prime is 605434807. The next prime is 605434831. The reversal of 605434809 is 908434506.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 605434809 - 2¹ = 605434807 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (605434801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14415094 + ... + 14415135.

It is an arithmetic number, because the mean of its divisors is an integer number (115320920).

Almost surely, 2^605434809 is an apocalyptic number.

It is an amenable number.

605434809 is a deficient number, since it is larger than the sum of its proper divisors (317132551).

605434809 is a wasteful number, since it uses less digits than its factorization.

605434809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28830239.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 605434809 is about 24605.5849148115. The cubic root of 605434809 is about 845.9716232679.

The spelling of 605434809 in words is "six hundred five million, four hundred thirty-four thousand, eight hundred nine".