230607809 has 4 divisors (see below), whose sum is σ = 231615060. Its totient is φ = 229600560.

The previous prime is 230607761. The next prime is 230607827. The reversal of 230607809 is 908706032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 210105025 + 20502784 = 14495^2 + 4528^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230607809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230604809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 503282 + ... + 503739.

It is an arithmetic number, because the mean of its divisors is an integer number (57903765).

Almost surely, 2^230607809 is an apocalyptic number.

It is an amenable number.

230607809 is a deficient number, since it is larger than the sum of its proper divisors (1007251).

230607809 is a wasteful number, since it uses less digits than its factorization.

230607809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007250.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 230607809 is about 15185.7765359563. The cubic root of 230607809 is about 613.2318030255.

The spelling of 230607809 in words is "two hundred thirty million, six hundred seven thousand, eight hundred nine".