606620221 has 8 divisors (see below), whose sum is σ = 623030144. Its totient is φ = 590315040.

The previous prime is 606620177. The next prime is 606620227. The reversal of 606620221 is 122026606.

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

It is a cyclic number.

It is not a de Polignac number, because 606620221 - 2⁷ = 606620093 is a prime.

It is a super-3 number, since 3×606620221³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (606620227) 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, 14376 + ... + 37681.

It is an arithmetic number, because the mean of its divisors is an integer number (77878768).

Almost surely, 2^606620221 is an apocalyptic number.

It is an amenable number.

606620221 is a deficient number, since it is larger than the sum of its proper divisors (16409923).

606620221 is a wasteful number, since it uses less digits than its factorization.

606620221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52371.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 606620221 is about 24629.6614065236. The cubic root of 606620221 is about 846.5233871219.

Adding to 606620221 its reverse (122026606), we get a palindrome (728646827).

It can be divided in two parts, 606620 and 221, that added together give a square (606841 = 779²).

The spelling of 606620221 in words is "six hundred six million, six hundred twenty thousand, two hundred twenty-one".