606620 has 36 divisors (see below), whose sum is σ = 1484280. Its totient is φ = 207648.

The previous prime is 606607. The next prime is 606643. The reversal of 606620 is 26606.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 606592 and 606601.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 606620.

It is an unprimeable number.

606620 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 671 + ... + 1289.

It is an arithmetic number, because the mean of its divisors is an integer number (41230).

2⁶⁰⁶⁶²⁰ 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 606620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (742140).

606620 is an abundant number, since it is smaller than the sum of its proper divisors (877660).

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

606620 is a wasteful number, since it uses less digits than its factorization.

606620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642 (or 633 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 606620 is about 778.8581385593. The cubic root of 606620 is about 84.6523284322.

The spelling of 606620 in words is "six hundred six thousand, six hundred twenty".