6620361 has 16 divisors (see below), whose sum is σ = 10196928. Its totient is φ = 3776000.

The previous prime is 6620357. The next prime is 6620363. The reversal of 6620361 is 1630266.

It is a cyclic number.

It is not a de Polignac number, because 6620361 - 2² = 6620357 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (6620363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5340 + ... + 6461.

It is an arithmetic number, because the mean of its divisors is an integer number (637308).

Almost surely, 2^6620361 is an apocalyptic number.

It is an amenable number.

6620361 is a deficient number, since it is larger than the sum of its proper divisors (3576567).

6620361 is a wasteful number, since it uses less digits than its factorization.

6620361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11832.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 6620361 is about 2573.0062184146. The cubic root of 6620361 is about 187.7704399665.

The spelling of 6620361 in words is "six million, six hundred twenty thousand, three hundred sixty-one".