606709591 has 2 divisors, whose sum is σ = 606709592. Its totient is φ = 606709590.

The previous prime is 606709573. The next prime is 606709639. The reversal of 606709591 is 195907606.

606709591 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 606709591 - 2⁵ = 606709559 is a prime.

It is a super-2 number, since 2×606709591² = 736193055622774562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (606709531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303354795 + 303354796.

It is an arithmetic number, because the mean of its divisors is an integer number (303354796).

Almost surely, 2^606709591 is an apocalyptic number.

606709591 is a deficient number, since it is larger than the sum of its proper divisors (1).

606709591 is an equidigital number, since it uses as much as digits as its factorization.

606709591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 102060, while the sum is 43.

The square root of 606709591 is about 24631.4756155615. The cubic root of 606709591 is about 846.5649562825.

The spelling of 606709591 in words is "six hundred six million, seven hundred nine thousand, five hundred ninety-one".