728350343 has 4 divisors (see below), whose sum is σ = 832400400. Its totient is φ = 624300288.

The previous prime is 728350331. The next prime is 728350369. The reversal of 728350343 is 343053827.

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 728350343 - 2²⁰ = 727301767 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 (728350373) 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, 52025018 + ... + 52025031.

It is an arithmetic number, because the mean of its divisors is an integer number (208100100).

Almost surely, 2^728350343 is an apocalyptic number.

728350343 is a deficient number, since it is larger than the sum of its proper divisors (104050057).

728350343 is a wasteful number, since it uses less digits than its factorization.

728350343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104050056.

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 728350343 is about 26987.9666332979. The cubic root of 728350343 is about 899.7325719840.

The spelling of 728350343 in words is "seven hundred twenty-eight million, three hundred fifty thousand, three hundred forty-three".