6673663 has 4 divisors (see below), whose sum is σ = 6681168. Its totient is φ = 6666160.

The previous prime is 6673637. The next prime is 6673687. The reversal of 6673663 is 3663766.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6673663 - 2⁵ = 6673631 is a prime.

It is a d-powerful number, because it can be written as 6² + 6⁶ + 7⁶ + 3⁴ + 6⁶ + 6⁸ + 3¹⁴ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6673613) 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, 2206 + ... + 4267.

It is an arithmetic number, because the mean of its divisors is an integer number (1670292).

Almost surely, 2^6673663 is an apocalyptic number.

6673663 is a deficient number, since it is larger than the sum of its proper divisors (7505).

6673663 is a wasteful number, since it uses less digits than its factorization.

6673663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7504.

The product of its digits is 81648, while the sum is 37.

The square root of 6673663 is about 2583.3433763246. The cubic root of 6673663 is about 188.2730207758.

The spelling of 6673663 in words is "six million, six hundred seventy-three thousand, six hundred sixty-three".