6641207 has 4 divisors (see below), whose sum is σ = 6655896. Its totient is φ = 6626520.

The previous prime is 6641197. The next prime is 6641231. The reversal of 6641207 is 7021466.

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 6641207 - 2⁶ = 6641143 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 (6641267) 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 3 ways as a sum of consecutive naturals, for example, 6644 + ... + 7577.

It is an arithmetic number, because the mean of its divisors is an integer number (1663974).

Almost surely, 2^6641207 is an apocalyptic number.

6641207 is a deficient number, since it is larger than the sum of its proper divisors (14689).

6641207 is a wasteful number, since it uses less digits than its factorization.

6641207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14688.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 6641207 is about 2577.0539381239. The cubic root of 6641207 is about 187.9673155041.

The spelling of 6641207 in words is "six million, six hundred forty-one thousand, two hundred seven".