728499305701 has 2 divisors, whose sum is σ = 728499305702. Its totient is φ = 728499305700.

The previous prime is 728499305687. The next prime is 728499305719. The reversal of 728499305701 is 107503994827.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 374562360225 + 353936945476 = 612015^2 + 594926^2 .

It is an emirp because it is prime and its reverse (107503994827) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 728499305701 - 2¹⁷ = 728499174629 is a prime.

It is a super-2 number, since 2×728499305701² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (728499305731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364249652850 + 364249652851.

It is an arithmetic number, because the mean of its divisors is an integer number (364249652851).

Almost surely, 2^728499305701 is an apocalyptic number.

It is an amenable number.

728499305701 is a deficient number, since it is larger than the sum of its proper divisors (1).

728499305701 is an equidigital number, since it uses as much as digits as its factorization.

728499305701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3810240, while the sum is 55.

The spelling of 728499305701 in words is "seven hundred twenty-eight billion, four hundred ninety-nine million, three hundred five thousand, seven hundred one".