728148943 has 2 divisors, whose sum is σ = 728148944. Its totient is φ = 728148942.

The previous prime is 728148929. The next prime is 728148977. The reversal of 728148943 is 349841827.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-728148943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 728148893 and 728148902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (728148983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364074471 + 364074472.

It is an arithmetic number, because the mean of its divisors is an integer number (364074472).

Almost surely, 2^728148943 is an apocalyptic number.

728148943 is a deficient number, since it is larger than the sum of its proper divisors (1).

728148943 is an equidigital number, since it uses as much as digits as its factorization.

728148943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072, while the sum is 46.

The square root of 728148943 is about 26984.2350827293. The cubic root of 728148943 is about 899.6496344040.

The spelling of 728148943 in words is "seven hundred twenty-eight million, one hundred forty-eight thousand, nine hundred forty-three".