123663927 has 4 divisors (see below), whose sum is σ = 164885240. Its totient is φ = 82442616.

The previous prime is 123663907. The next prime is 123663931. The reversal of 123663927 is 729366321.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 123663927 - 2¹⁴ = 123647543 is a prime.

It is a super-2 number, since 2×123663927² = 30585533682122658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123663907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20610652 + ... + 20610657.

It is an arithmetic number, because the mean of its divisors is an integer number (41221310).

Almost surely, 2^123663927 is an apocalyptic number.

123663927 is a deficient number, since it is larger than the sum of its proper divisors (41221313).

123663927 is an equidigital number, since it uses as much as digits as its factorization.

123663927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41221312.

The product of its digits is 81648, while the sum is 39.

The square root of 123663927 is about 11120.4283640514. The cubic root of 123663927 is about 498.2121843831.

The spelling of 123663927 in words is "one hundred twenty-three million, six hundred sixty-three thousand, nine hundred twenty-seven".