6123663 has 24 divisors (see below), whose sum is σ = 10887968. Its totient is φ = 3229632.

The previous prime is 6123653. The next prime is 6123683. The reversal of 6123663 is 3663216.

It is not a de Polignac number, because 6123663 - 2⁵ = 6123631 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 (6123613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2920 + ... + 4557.

Almost surely, 2^6123663 is an apocalyptic number.

6123663 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

6123663 is a deficient number, since it is larger than the sum of its proper divisors (4764305).

6123663 is a wasteful number, since it uses less digits than its factorization.

6123663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7503 (or 7500 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 6123663 is about 2474.6036046203. The cubic root of 6123663 is about 182.9519716297.

Adding to 6123663 its reverse (3663216), we get a palindrome (9786879).

It can be divided in two parts, 6123 and 663, that added together give a triangular number (6786 = T₁₁₆).

The spelling of 6123663 in words is "six million, one hundred twenty-three thousand, six hundred sixty-three".