6423663 has 8 divisors (see below), whose sum is σ = 8615088. Its totient is φ = 4257344.

The previous prime is 6423661. The next prime is 6423673. The reversal of 6423663 is 3663246.

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 6423663 - 2¹ = 6423661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6423663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6423661) 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, 5670 + ... + 6707.

It is an arithmetic number, because the mean of its divisors is an integer number (1076886).

Almost surely, 2^6423663 is an apocalyptic number.

6423663 is a deficient number, since it is larger than the sum of its proper divisors (2191425).

6423663 is a wasteful number, since it uses less digits than its factorization.

6423663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12553.

The product of its digits is 15552, while the sum is 30.

The square root of 6423663 is about 2534.4946241805. The cubic root of 6423663 is about 185.8920925723.

The spelling of 6423663 in words is "six million, four hundred twenty-three thousand, six hundred sixty-three".