6642075 has 48 divisors (see below), whose sum is σ = 12249216. Its totient is φ = 3148800.

The previous prime is 6642071. The next prime is 6642079. The reversal of 6642075 is 5702466.

It is an interprime number because it is at equal distance from previous prime (6642071) and next prime (6642079).

It is not a de Polignac number, because 6642075 - 2² = 6642071 is a prime.

6642075 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6642071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 68427 + ... + 68523.

It is an arithmetic number, because the mean of its divisors is an integer number (255192).

Almost surely, 2^6642075 is an apocalyptic number.

6642075 is a deficient number, since it is larger than the sum of its proper divisors (5607141).

6642075 is a wasteful number, since it uses less digits than its factorization.

6642075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 6642075 is about 2577.2223419798. Note that the first 3 decimals coincide. The cubic root of 6642075 is about 187.9755042024.

The spelling of 6642075 in words is "six million, six hundred forty-two thousand, seventy-five".