230729 has 2 divisors, whose sum is σ = 230730. Its totient is φ = 230728.

The previous prime is 230719. The next prime is 230743. The reversal of 230729 is 927032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 182329 + 48400 = 427^2 + 220^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230729 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is equal to p₂₀₄₉₈ and since 230729 and 20498 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115364 + 115365.

It is an arithmetic number, because the mean of its divisors is an integer number (115365).

2²³⁰⁷²⁹ is an apocalyptic number.

It is an amenable number.

230729 is a deficient number, since it is larger than the sum of its proper divisors (1).

230729 is an equidigital number, since it uses as much as digits as its factorization.

230729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 230729 is about 480.3425860779. The cubic root of 230729 is about 61.3339207831. Note that the first 3 decimals are identical.

It can be divided in two parts, 230 and 729, that added together give a palindrome (959).

The spelling of 230729 in words is "two hundred thirty thousand, seven hundred twenty-nine".