606904789 has 2 divisors, whose sum is σ = 606904790. Its totient is φ = 606904788.

The previous prime is 606904741. The next prime is 606904817. The reversal of 606904789 is 987409606.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 597802500 + 9102289 = 24450^2 + 3017^2 .

It is a cyclic number.

It is not a de Polignac number, because 606904789 - 2¹⁹ = 606380501 is a prime.

It is a super-2 number, since 2×606904789² = 736666845822269042, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (606904589) 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, 303452394 + 303452395.

It is an arithmetic number, because the mean of its divisors is an integer number (303452395).

Almost surely, 2^606904789 is an apocalyptic number.

It is an amenable number.

606904789 is a deficient number, since it is larger than the sum of its proper divisors (1).

606904789 is an equidigital number, since it uses as much as digits as its factorization.

606904789 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 49.

The square root of 606904789 is about 24635.4376660939. The cubic root of 606904789 is about 846.6557356109.

The spelling of 606904789 in words is "six hundred six million, nine hundred four thousand, seven hundred eighty-nine".