608994609 has 4 divisors (see below), whose sum is σ = 811992816. Its totient is φ = 405996404.

The previous prime is 608994601. The next prime is 608994611. The reversal of 608994609 is 906499806.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 608994609 - 2³ = 608994601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (608994601) 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 in 3 ways as a sum of consecutive naturals, for example, 101499099 + ... + 101499104.

It is an arithmetic number, because the mean of its divisors is an integer number (202998204).

Almost surely, 2^608994609 is an apocalyptic number.

It is an amenable number.

608994609 is a deficient number, since it is larger than the sum of its proper divisors (202998207).

608994609 is a wasteful number, since it uses less digits than its factorization.

608994609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202998206.

The product of its (nonzero) digits is 839808, while the sum is 51.

The square root of 608994609 is about 24677.8161310923. The cubic root of 608994609 is about 847.6264156497.

The spelling of 608994609 in words is "six hundred eight million, nine hundred ninety-four thousand, six hundred nine".