6620089 has 8 divisors (see below), whose sum is σ = 8011008. Its totient is φ = 5340480.

The previous prime is 6620083. The next prime is 6620101. The reversal of 6620089 is 9800266.

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 6620089 - 2⁵ = 6620057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6620089.

It is not an unprimeable number, because it can be changed into a prime (6620083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27697 + ... + 27934.

It is an arithmetic number, because the mean of its divisors is an integer number (1001376).

Almost surely, 2^6620089 is an apocalyptic number.

It is an amenable number.

6620089 is a deficient number, since it is larger than the sum of its proper divisors (1390919).

6620089 is a wasteful number, since it uses less digits than its factorization.

6620089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55655.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 6620089 is about 2572.9533614117. The cubic root of 6620089 is about 187.7678683918.

The spelling of 6620089 in words is "six million, six hundred twenty thousand, eighty-nine".