606636 has 48 divisors (see below), whose sum is σ = 1622880. Its totient is φ = 195840.

The previous prime is 606607. The next prime is 606643. The reversal of 606636 is 636606.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 606636.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4360 + ... + 4496.

It is an arithmetic number, because the mean of its divisors is an integer number (33810).

2⁶⁰⁶⁶³⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 606636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (811440).

606636 is an abundant number, since it is smaller than the sum of its proper divisors (1016244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

606636 is a wasteful number, since it uses less digits than its factorization.

606636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 606636 is about 778.8684099384. The cubic root of 606636 is about 84.6530726792.

The spelling of 606636 in words is "six hundred six thousand, six hundred thirty-six".