12638829 has 8 divisors (see below), whose sum is σ = 19259200. Its totient is φ = 7222176.

The previous prime is 12638827. The next prime is 12638839. The reversal of 12638829 is 92883621.

It is a happy number.

12638829 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12638829 - 2¹ = 12638827 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12638827) 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, 300904 + ... + 300945.

It is an arithmetic number, because the mean of its divisors is an integer number (2407400).

Almost surely, 2^12638829 is an apocalyptic number.

It is an amenable number.

12638829 is a deficient number, since it is larger than the sum of its proper divisors (6620371).

12638829 is an equidigital number, since it uses as much as digits as its factorization.

12638829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601859.

The product of its digits is 41472, while the sum is 39.

The square root of 12638829 is about 3555.1130783704. The cubic root of 12638829 is about 232.9354632242.

The spelling of 12638829 in words is "twelve million, six hundred thirty-eight thousand, eight hundred twenty-nine".