12423655 has 4 divisors (see below), whose sum is σ = 14908392. Its totient is φ = 9938920.

The previous prime is 12423643. The next prime is 12423667. The reversal of 12423655 is 55632421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55632421 = 13 ⋅4279417.

It is an interprime number because it is at equal distance from previous prime (12423643) and next prime (12423667).

It is not a de Polignac number, because 12423655 - 2⁵ = 12423623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1242361 + ... + 1242370.

It is an arithmetic number, because the mean of its divisors is an integer number (3727098).

Almost surely, 2^12423655 is an apocalyptic number.

12423655 is a deficient number, since it is larger than the sum of its proper divisors (2484737).

12423655 is an equidigital number, since it uses as much as digits as its factorization.

12423655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2484736.

The product of its digits is 7200, while the sum is 28.

The square root of 12423655 is about 3524.7205562995. The cubic root of 12423655 is about 231.6059936921.

The spelling of 12423655 in words is "twelve million, four hundred twenty-three thousand, six hundred fifty-five".