743225729 has 2 divisors, whose sum is σ = 743225730. Its totient is φ = 743225728.

The previous prime is 743225687. The next prime is 743225761. The reversal of 743225729 is 927522347.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 378224704 + 365001025 = 19448^2 + 19105^2 .

It is a cyclic number.

It is not a de Polignac number, because 743225729 - 2²⁸ = 474790273 is a prime.

It is not a weakly prime, because it can be changed into another prime (743225779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371612864 + 371612865.

It is an arithmetic number, because the mean of its divisors is an integer number (371612865).

Almost surely, 2^743225729 is an apocalyptic number.

It is an amenable number.

743225729 is a deficient number, since it is larger than the sum of its proper divisors (1).

743225729 is an equidigital number, since it uses as much as digits as its factorization.

743225729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 41.

The square root of 743225729 is about 27262.1666233629. The cubic root of 743225729 is about 905.8165372548.

The spelling of 743225729 in words is "seven hundred forty-three million, two hundred twenty-five thousand, seven hundred twenty-nine".