6620579 has 8 divisors (see below), whose sum is σ = 7606368. Its totient is φ = 5644800.

The previous prime is 6620519. The next prime is 6620587. The reversal of 6620579 is 9750266.

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

It is not a de Polignac number, because 6620579 - 2¹² = 6616483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6620519) 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, 1022 + ... + 3779.

It is an arithmetic number, because the mean of its divisors is an integer number (950796).

Almost surely, 2^6620579 is an apocalyptic number.

6620579 is a deficient number, since it is larger than the sum of its proper divisors (985789).

6620579 is a wasteful number, since it uses less digits than its factorization.

6620579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5005.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 6620579 is about 2573.0485809638. The cubic root of 6620579 is about 187.7725009572.

The spelling of 6620579 in words is "six million, six hundred twenty thousand, five hundred seventy-nine".