6738663 has 8 divisors (see below), whose sum is σ = 8998128. Its totient is φ = 4485824.

The previous prime is 6738649. The next prime is 6738689. The reversal of 6738663 is 3668376.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6738663 - 2⁵ = 6738631 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6738623) 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, 1681 + ... + 4037.

It is an arithmetic number, because the mean of its divisors is an integer number (1124766).

Almost surely, 2^6738663 is an apocalyptic number.

6738663 is a deficient number, since it is larger than the sum of its proper divisors (2259465).

6738663 is a wasteful number, since it uses less digits than its factorization.

6738663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3313.

The product of its digits is 108864, while the sum is 39.

The square root of 6738663 is about 2595.8934877995. The cubic root of 6738663 is about 188.8822928236.

The spelling of 6738663 in words is "six million, seven hundred thirty-eight thousand, six hundred sixty-three".