230739 has 4 divisors (see below), whose sum is σ = 307656. Its totient is φ = 153824.

The previous prime is 230729. The next prime is 230743. The reversal of 230739 is 937032.

230739 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 230739 - 2⁷ = 230611 is a prime.

It is a super-2 number, since 2×230739² = 106480972242, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (230719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38454 + ... + 38459.

It is an arithmetic number, because the mean of its divisors is an integer number (76914).

2²³⁰⁷³⁹ is an apocalyptic number.

230739 is a deficient number, since it is larger than the sum of its proper divisors (76917).

230739 is an equidigital number, since it uses as much as digits as its factorization.

230739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76916.

The product of its (nonzero) digits is 1134, while the sum is 24.

The square root of 230739 is about 480.3529952025. The cubic root of 230739 is about 61.3348068592.

It can be divided in two parts, 2307 and 39, that added together give a triangular number (2346 = T₆₈).

The spelling of 230739 in words is "two hundred thirty thousand, seven hundred thirty-nine".