728328701 has 2 divisors, whose sum is σ = 728328702. Its totient is φ = 728328700.

The previous prime is 728328647. The next prime is 728328709. The reversal of 728328701 is 107823827.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 572453476 + 155875225 = 23926^2 + 12485^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-728328701 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (728328709) 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, 364164350 + 364164351.

It is an arithmetic number, because the mean of its divisors is an integer number (364164351).

Almost surely, 2^728328701 is an apocalyptic number.

It is an amenable number.

728328701 is a deficient number, since it is larger than the sum of its proper divisors (1).

728328701 is an equidigital number, since it uses as much as digits as its factorization.

728328701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 728328701 is about 26987.5656738432. The cubic root of 728328701 is about 899.7236604278.

The spelling of 728328701 in words is "seven hundred twenty-eight million, three hundred twenty-eight thousand, seven hundred one".