730268689 has 2 divisors, whose sum is σ = 730268690. Its totient is φ = 730268688.

The previous prime is 730268663. The next prime is 730268723. The reversal of 730268689 is 986862037.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 524776464 + 205492225 = 22908^2 + 14335^2 .

It is a cyclic number.

It is not a de Polignac number, because 730268689 - 2¹⁹ = 729744401 is a prime.

It is not a weakly prime, because it can be changed into another prime (730268389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365134344 + 365134345.

It is an arithmetic number, because the mean of its divisors is an integer number (365134345).

Almost surely, 2^730268689 is an apocalyptic number.

It is an amenable number.

730268689 is a deficient number, since it is larger than the sum of its proper divisors (1).

730268689 is an equidigital number, since it uses as much as digits as its factorization.

730268689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 49.

The square root of 730268689 is about 27023.4840277859. The cubic root of 730268689 is about 900.5217916618.

The spelling of 730268689 in words is "seven hundred thirty million, two hundred sixty-eight thousand, six hundred eighty-nine".