6664263 has 8 divisors (see below), whose sum is σ = 9102576. Its totient is φ = 4334400.

The previous prime is 6664261. The next prime is 6664277. The reversal of 6664263 is 3624666.

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

It is not a de Polignac number, because 6664263 - 2¹ = 6664261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6664261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26968 + ... + 27213.

It is an arithmetic number, because the mean of its divisors is an integer number (1137822).

Almost surely, 2^6664263 is an apocalyptic number.

6664263 is a deficient number, since it is larger than the sum of its proper divisors (2438313).

6664263 is a wasteful number, since it uses less digits than its factorization.

6664263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54225.

The product of its digits is 31104, while the sum is 33.

The square root of 6664263 is about 2581.5233874594. The cubic root of 6664263 is about 188.1845836878.

The spelling of 6664263 in words is "six million, six hundred sixty-four thousand, two hundred sixty-three".