728433683 has 8 divisors (see below), whose sum is σ = 744351552. Its totient is φ = 712533376.

The previous prime is 728433677. The next prime is 728433703. The reversal of 728433683 is 386334827.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 728433683 - 2⁶ = 728433619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (728433283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113291 + ... + 119547.

It is an arithmetic number, because the mean of its divisors is an integer number (93043944).

Almost surely, 2^728433683 is an apocalyptic number.

728433683 is a deficient number, since it is larger than the sum of its proper divisors (15917869).

728433683 is a wasteful number, since it uses less digits than its factorization.

728433683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8781.

The product of its digits is 580608, while the sum is 44.

The square root of 728433683 is about 26989.5106106057. The cubic root of 728433683 is about 899.7668873624.

The spelling of 728433683 in words is "seven hundred twenty-eight million, four hundred thirty-three thousand, six hundred eighty-three".