728995633 has 2 divisors, whose sum is σ = 728995634. Its totient is φ = 728995632.

The previous prime is 728995627. The next prime is 728995639. The reversal of 728995633 is 336599827.

It is a balanced prime because it is at equal distance from previous prime (728995627) and next prime (728995639).

It can be written as a sum of positive squares in only one way, i.e., 651678784 + 77316849 = 25528^2 + 8793^2 .

It is a cyclic number.

It is not a de Polignac number, because 728995633 - 2⁹ = 728995121 is a prime.

It is not a weakly prime, because it can be changed into another prime (728995639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364497816 + 364497817.

It is an arithmetic number, because the mean of its divisors is an integer number (364497817).

Almost surely, 2^728995633 is an apocalyptic number.

It is an amenable number.

728995633 is a deficient number, since it is larger than the sum of its proper divisors (1).

728995633 is an equidigital number, since it uses as much as digits as its factorization.

728995633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2449440, while the sum is 52.

The square root of 728995633 is about 26999.9191295085. The cubic root of 728995633 is about 899.9982028771.

The spelling of 728995633 in words is "seven hundred twenty-eight million, nine hundred ninety-five thousand, six hundred thirty-three".