6642103 has 4 divisors (see below), whose sum is σ = 7153048. Its totient is φ = 6131160.

The previous prime is 6642089. The next prime is 6642109. The reversal of 6642103 is 3012466.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6642103 - 2⁵ = 6642071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6642109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255453 + ... + 255478.

It is an arithmetic number, because the mean of its divisors is an integer number (1788262).

Almost surely, 2^6642103 is an apocalyptic number.

6642103 is a deficient number, since it is larger than the sum of its proper divisors (510945).

6642103 is a wasteful number, since it uses less digits than its factorization.

6642103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510944.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 6642103 is about 2577.2277741791. The cubic root of 6642103 is about 187.9757683421.

Adding to 6642103 its reverse (3012466), we get a palindrome (9654569).

The spelling of 6642103 in words is "six million, six hundred forty-two thousand, one hundred three".