606621 has 8 divisors (see below), whose sum is σ = 813280. Its totient is φ = 402192.

The previous prime is 606607. The next prime is 606643. The reversal of 606621 is 126606.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 606621 - 2⁵ = 606589 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 (606121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246 + ... + 1128.

It is an arithmetic number, because the mean of its divisors is an integer number (101660).

2⁶⁰⁶⁶²¹ is an apocalyptic number.

It is an amenable number.

606621 is a deficient number, since it is larger than the sum of its proper divisors (206659).

606621 is a wasteful number, since it uses less digits than its factorization.

606621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 606621 is about 778.8587805244. The cubic root of 606621 is about 84.6523749480.

The spelling of 606621 in words is "six hundred six thousand, six hundred twenty-one".