606709 has 4 divisors (see below), whose sum is σ = 627660. Its totient is φ = 585760.

The previous prime is 606673. The next prime is 606721. The reversal of 606709 is 907606.

606709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 378225 + 228484 = 615^2 + 478^2 .

It is a cyclic number.

It is not a de Polignac number, because 606709 - 2⁷ = 606581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10432 + ... + 10489.

It is an arithmetic number, because the mean of its divisors is an integer number (156915).

2⁶⁰⁶⁷⁰⁹ is an apocalyptic number.

It is an amenable number.

606709 is a deficient number, since it is larger than the sum of its proper divisors (20951).

606709 is a wasteful number, since it uses less digits than its factorization.

606709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20950.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 606709 is about 778.9152713871. The cubic root of 606709 is about 84.6564681401.

The spelling of 606709 in words is "six hundred six thousand, seven hundred nine".