6654663 has 8 divisors (see below), whose sum is σ = 9858800. Its totient is φ = 4436424.

The previous prime is 6654653. The next prime is 6654679. The reversal of 6654663 is 3664566.

It is not a de Polignac number, because 6654663 - 2⁴ = 6654647 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 (6654643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123208 + ... + 123261.

It is an arithmetic number, because the mean of its divisors is an integer number (1232350).

Almost surely, 2^6654663 is an apocalyptic number.

6654663 is a deficient number, since it is larger than the sum of its proper divisors (3204137).

6654663 is a wasteful number, since it uses less digits than its factorization.

6654663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246478 (or 246472 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 6654663 is about 2579.6633501292. The cubic root of 6654663 is about 188.0941790842.

The spelling of 6654663 in words is "six million, six hundred fifty-four thousand, six hundred sixty-three".