6618423 has 16 divisors (see below), whose sum is σ = 10679040. Its totient is φ = 3559296.

The previous prime is 6618421. The next prime is 6618433. The reversal of 6618423 is 3248166.

It is not a de Polignac number, because 6618423 - 2¹ = 6618421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6618421) 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, 8913 + ... + 9626.

It is an arithmetic number, because the mean of its divisors is an integer number (667440).

Almost surely, 2^6618423 is an apocalyptic number.

6618423 is a deficient number, since it is larger than the sum of its proper divisors (4060617).

6618423 is a wasteful number, since it uses less digits than its factorization.

6618423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18566.

The product of its digits is 6912, while the sum is 30.

The square root of 6618423 is about 2572.6295885728. The cubic root of 6618423 is about 187.7521159594.

The spelling of 6618423 in words is "six million, six hundred eighteen thousand, four hundred twenty-three".