729034231 has 4 divisors (see below), whose sum is σ = 729949752. Its totient is φ = 728118712.

The previous prime is 729034217. The next prime is 729034247. The reversal of 729034231 is 132430927.

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 729034231 - 2⁹ = 729033719 is a prime.

It is a super-2 number, since 2×729034231² = 1062981819939522722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 729034193 and 729034202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729034211) 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, 456565 + ... + 458158.

It is an arithmetic number, because the mean of its divisors is an integer number (182487438).

Almost surely, 2^729034231 is an apocalyptic number.

729034231 is a deficient number, since it is larger than the sum of its proper divisors (915521).

729034231 is an equidigital number, since it uses as much as digits as its factorization.

729034231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915520.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 729034231 is about 27000.6338999661. The cubic root of 729034231 is about 900.0140866108.

The spelling of 729034231 in words is "seven hundred twenty-nine million, thirty-four thousand, two hundred thirty-one".