743606389 has 2 divisors, whose sum is σ = 743606390. Its totient is φ = 743606388.

The previous prime is 743606351. The next prime is 743606417. The reversal of 743606389 is 983606347.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 718776100 + 24830289 = 26810^2 + 4983^2 .

It is a cyclic number.

It is not a de Polignac number, because 743606389 - 2¹³ = 743598197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (743606309) 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, 371803194 + 371803195.

It is an arithmetic number, because the mean of its divisors is an integer number (371803195).

Almost surely, 2^743606389 is an apocalyptic number.

It is an amenable number.

743606389 is a deficient number, since it is larger than the sum of its proper divisors (1).

743606389 is an equidigital number, since it uses as much as digits as its factorization.

743606389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 46.

The square root of 743606389 is about 27269.1471997201. The cubic root of 743606389 is about 905.9711557236.

The spelling of 743606389 in words is "seven hundred forty-three million, six hundred six thousand, three hundred eighty-nine".