606646 has 4 divisors (see below), whose sum is σ = 909972. Its totient is φ = 303322.

The previous prime is 606643. The next prime is 606649. The reversal of 606646 is 646606.

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

It is an interprime number because it is at equal distance from previous prime (606643) and next prime (606649).

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 as a sum of consecutive naturals, namely, 151660 + ... + 151663.

It is an arithmetic number, because the mean of its divisors is an integer number (227493).

2⁶⁰⁶⁶⁴⁶ is an apocalyptic number.

606646 is a deficient number, since it is larger than the sum of its proper divisors (303326).

606646 is a wasteful number, since it uses less digits than its factorization.

606646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303325.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 606646 is about 778.8748294816. The cubic root of 606646 is about 84.6535378269.

The spelling of 606646 in words is "six hundred six thousand, six hundred forty-six".