729834563 has 4 divisors (see below), whose sum is σ = 747635448. Its totient is φ = 712033680.

The previous prime is 729834541. The next prime is 729834587. The reversal of 729834563 is 365438927.

It is a happy number.

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 729834563 - 2¹⁸ = 729572419 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (729834533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8900381 + ... + 8900462.

It is an arithmetic number, because the mean of its divisors is an integer number (186908862).

Almost surely, 2^729834563 is an apocalyptic number.

729834563 is a deficient number, since it is larger than the sum of its proper divisors (17800885).

729834563 is a wasteful number, since it uses less digits than its factorization.

729834563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17800884.

The product of its digits is 1088640, while the sum is 47.

The square root of 729834563 is about 27015.4504496964. The cubic root of 729834563 is about 900.3433105892.

The spelling of 729834563 in words is "seven hundred twenty-nine million, eight hundred thirty-four thousand, five hundred sixty-three".