12623638 has 8 divisors (see below), whose sum is σ = 19932120. Its totient is φ = 5979600.

The previous prime is 12623629. The next prime is 12623641. The reversal of 12623638 is 83632621.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166063 + ... + 166138.

It is an arithmetic number, because the mean of its divisors is an integer number (2491515).

Almost surely, 2^12623638 is an apocalyptic number.

12623638 is a deficient number, since it is larger than the sum of its proper divisors (7308482).

12623638 is a wasteful number, since it uses less digits than its factorization.

12623638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332222.

The product of its digits is 10368, while the sum is 31.

The square root of 12623638 is about 3552.9759357474. The cubic root of 12623638 is about 232.8421016938.

It can be divided in two parts, 1262 and 3638, that added together give a square (4900 = 70²).

The spelling of 12623638 in words is "twelve million, six hundred twenty-three thousand, six hundred thirty-eight".