728818343 has 8 divisors (see below), whose sum is σ = 822491280. Its totient is φ = 639714880.

The previous prime is 728818303. The next prime is 728818361. The reversal of 728818343 is 343818827.

It is a happy number.

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 728818343 - 2¹⁴ = 728801959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 728818294 and 728818303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728818303) 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, 1142030 + ... + 1142667.

It is an arithmetic number, because the mean of its divisors is an integer number (102811410).

Almost surely, 2^728818343 is an apocalyptic number.

728818343 is a deficient number, since it is larger than the sum of its proper divisors (93672937).

728818343 is a wasteful number, since it uses less digits than its factorization.

728818343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2284737.

The product of its digits is 258048, while the sum is 44.

The square root of 728818343 is about 26996.6357718883. The cubic root of 728818343 is about 899.9252378227.

The spelling of 728818343 in words is "seven hundred twenty-eight million, eight hundred eighteen thousand, three hundred forty-three".