728428758 has 8 divisors (see below), whose sum is σ = 1456857528. Its totient is φ = 242809584.

The previous prime is 728428717. The next prime is 728428763. The reversal of 728428758 is 857824827.

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

728428758 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 728428758.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60702391 + ... + 60702402.

It is an arithmetic number, because the mean of its divisors is an integer number (182107191).

Almost surely, 2^728428758 is an apocalyptic number.

728428758 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

728428758 is a wasteful number, since it uses less digits than its factorization.

728428758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121404798.

The product of its digits is 2007040, while the sum is 51.

The square root of 728428758 is about 26989.4193713018. The cubic root of 728428758 is about 899.7648595585.

The spelling of 728428758 in words is "seven hundred twenty-eight million, four hundred twenty-eight thousand, seven hundred fifty-eight".