728848849 has 2 divisors, whose sum is σ = 728848850. Its totient is φ = 728848848.

The previous prime is 728848823. The next prime is 728848853. The reversal of 728848849 is 948848827.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 373262400 + 355586449 = 19320^2 + 18857^2 .

It is a cyclic number.

It is not a de Polignac number, because 728848849 - 2¹¹ = 728846801 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 728848793 and 728848802.

It is not a weakly prime, because it can be changed into another prime (728848819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364424424 + 364424425.

It is an arithmetic number, because the mean of its divisors is an integer number (364424425).

Almost surely, 2^728848849 is an apocalyptic number.

It is an amenable number.

728848849 is a deficient number, since it is larger than the sum of its proper divisors (1).

728848849 is an equidigital number, since it uses as much as digits as its factorization.

728848849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8257536, while the sum is 58.

The square root of 728848849 is about 26997.2007623013. The cubic root of 728848849 is about 899.9377936429.

The spelling of 728848849 in words is "seven hundred twenty-eight million, eight hundred forty-eight thousand, eight hundred forty-nine".