606647 has 4 divisors (see below), whose sum is σ = 614040. Its totient is φ = 599256.

The previous prime is 606643. The next prime is 606649. The reversal of 606647 is 746606.

606647 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 is a cyclic number.

It is not a de Polignac number, because 606647 - 2² = 606643 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 (606643) 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, 3572 + ... + 3737.

It is an arithmetic number, because the mean of its divisors is an integer number (153510).

2⁶⁰⁶⁶⁴⁷ is an apocalyptic number.

606647 is a deficient number, since it is larger than the sum of its proper divisors (7393).

606647 is an equidigital number, since it uses as much as digits as its factorization.

606647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7392.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 606647 is about 778.8754714330. The cubic root of 606647 is about 84.6535843414.

The spelling of 606647 in words is "six hundred six thousand, six hundred forty-seven".