728274259 has 4 divisors (see below), whose sum is σ = 743769504. Its totient is φ = 712779016.

The previous prime is 728274223. The next prime is 728274263. The reversal of 728274259 is 952472827.

728274259 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 728274259 - 2¹⁷ = 728143187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (728274299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7747552 + ... + 7747645.

It is an arithmetic number, because the mean of its divisors is an integer number (185942376).

Almost surely, 2^728274259 is an apocalyptic number.

728274259 is a deficient number, since it is larger than the sum of its proper divisors (15495245).

728274259 is a wasteful number, since it uses less digits than its factorization.

728274259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15495244.

The product of its digits is 564480, while the sum is 46.

The square root of 728274259 is about 26986.5570052943. The cubic root of 728274259 is about 899.7012419895.

The spelling of 728274259 in words is "seven hundred twenty-eight million, two hundred seventy-four thousand, two hundred fifty-nine".