230487639 has 4 divisors (see below), whose sum is σ = 307316856. Its totient is φ = 153658424.

The previous prime is 230487637. The next prime is 230487701. The reversal of 230487639 is 936784032.

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

It is a cyclic number.

It is not a de Polignac number, because 230487639 - 2¹ = 230487637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 230487639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230487637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38414604 + ... + 38414609.

It is an arithmetic number, because the mean of its divisors is an integer number (76829214).

Almost surely, 2^230487639 is an apocalyptic number.

230487639 is a deficient number, since it is larger than the sum of its proper divisors (76829217).

230487639 is an equidigital number, since it uses as much as digits as its factorization.

230487639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76829216.

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 230487639 is about 15181.8193573761. The cubic root of 230487639 is about 613.1252659136.

The spelling of 230487639 in words is "two hundred thirty million, four hundred eighty-seven thousand, six hundred thirty-nine".