230655889 has 4 divisors (see below), whose sum is σ = 230687856. Its totient is φ = 230623924.

The previous prime is 230655851. The next prime is 230655907. The reversal of 230655889 is 988556032.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 230655889 - 2⁹ = 230655377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230155889) 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, 522 + ... + 21484.

It is an arithmetic number, because the mean of its divisors is an integer number (57671964).

Almost surely, 2^230655889 is an apocalyptic number.

It is an amenable number.

230655889 is a deficient number, since it is larger than the sum of its proper divisors (31967).

230655889 is a wasteful number, since it uses less digits than its factorization.

230655889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31966.

The product of its (nonzero) digits is 518400, while the sum is 46.

The square root of 230655889 is about 15187.3595137535. The cubic root of 230655889 is about 613.2744181424.

The spelling of 230655889 in words is "two hundred thirty million, six hundred fifty-five thousand, eight hundred eighty-nine".