12634039 has 4 divisors (see below), whose sum is σ = 13782600. Its totient is φ = 11485480.

The previous prime is 12634007. The next prime is 12634067. The reversal of 12634039 is 93043621.

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

It is a cyclic number.

It is not a de Polignac number, because 12634039 - 2⁵ = 12634007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12633998 and 12634016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12634099) 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 3 ways as a sum of consecutive naturals, for example, 574264 + ... + 574285.

It is an arithmetic number, because the mean of its divisors is an integer number (3445650).

Almost surely, 2^12634039 is an apocalyptic number.

12634039 is a deficient number, since it is larger than the sum of its proper divisors (1148561).

12634039 is a wasteful number, since it uses less digits than its factorization.

12634039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148560.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 12634039 is about 3554.4393369419. The cubic root of 12634039 is about 232.9060327062.

The spelling of 12634039 in words is "twelve million, six hundred thirty-four thousand, thirty-nine".