6620229 has 48 divisors (see below), whose sum is σ = 12265344. Its totient is φ = 3340800.

The previous prime is 6620209. The next prime is 6620231. The reversal of 6620229 is 9220266.

It is not a de Polignac number, because 6620229 - 2⁷ = 6620101 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6620209) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28297 + ... + 28529.

It is an arithmetic number, because the mean of its divisors is an integer number (255528).

Almost surely, 2^6620229 is an apocalyptic number.

It is an amenable number.

6620229 is a deficient number, since it is larger than the sum of its proper divisors (5645115).

6620229 is a wasteful number, since it uses less digits than its factorization.

6620229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 6620229 is about 2572.9805673576. The cubic root of 6620229 is about 187.7691920053.

The spelling of 6620229 in words is "six million, six hundred twenty thousand, two hundred twenty-nine".