728673259 has 8 divisors (see below), whose sum is σ = 752698368. Its totient is φ = 704680680.

The previous prime is 728673251. The next prime is 728673269. The reversal of 728673259 is 952376827.

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 728673259 - 2³ = 728673251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (728673251) 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, 42504 + ... + 57130.

It is an arithmetic number, because the mean of its divisors is an integer number (94087296).

Almost surely, 2^728673259 is an apocalyptic number.

728673259 is a deficient number, since it is larger than the sum of its proper divisors (24025109).

728673259 is a wasteful number, since it uses less digits than its factorization.

728673259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16265.

The product of its digits is 1270080, while the sum is 49.

The square root of 728673259 is about 26993.9485625945. The cubic root of 728673259 is about 899.8655185894.

The spelling of 728673259 in words is "seven hundred twenty-eight million, six hundred seventy-three thousand, two hundred fifty-nine".