728407303 has 8 divisors (see below), whose sum is σ = 788423328. Its totient is φ = 668960544.

The previous prime is 728407261. The next prime is 728407307. The reversal of 728407303 is 303704827.

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 728407303 - 2²⁹ = 191536391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728407307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139651 + ... + 144772.

It is an arithmetic number, because the mean of its divisors is an integer number (98552916).

Almost surely, 2^728407303 is an apocalyptic number.

728407303 is a deficient number, since it is larger than the sum of its proper divisors (60016025).

728407303 is a wasteful number, since it uses less digits than its factorization.

728407303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284633.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 728407303 is about 26989.0218978013. The cubic root of 728407303 is about 899.7560256383.

The spelling of 728407303 in words is "seven hundred twenty-eight million, four hundred seven thousand, three hundred three".