728514049 has 2 divisors, whose sum is σ = 728514050. Its totient is φ = 728514048.

The previous prime is 728514023. The next prime is 728514071. The reversal of 728514049 is 940415827.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 517335025 + 211179024 = 22745^2 + 14532^2 .

It is a cyclic number.

It is not a de Polignac number, because 728514049 - 2⁷ = 728513921 is a prime.

It is not a weakly prime, because it can be changed into another prime (728514019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364257024 + 364257025.

It is an arithmetic number, because the mean of its divisors is an integer number (364257025).

Almost surely, 2^728514049 is an apocalyptic number.

It is an amenable number.

728514049 is a deficient number, since it is larger than the sum of its proper divisors (1).

728514049 is an equidigital number, since it uses as much as digits as its factorization.

728514049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 728514049 is about 26990.9994072098. Note that the first 3 decimals coincide. The cubic root of 728514049 is about 899.7999757127.

The spelling of 728514049 in words is "seven hundred twenty-eight million, five hundred fourteen thousand, forty-nine".