12838634 has 8 divisors (see below), whose sum is σ = 19320420. Its totient is φ = 6398496.

The previous prime is 12838627. The next prime is 12838643. The reversal of 12838634 is 43683821.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9765625 + 3073009 = 3125^2 + 1753^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 12838594 and 12838603.

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, 9629 + ... + 10880.

Almost surely, 2^12838634 is an apocalyptic number.

12838634 is a deficient number, since it is larger than the sum of its proper divisors (6481786).

12838634 is a wasteful number, since it uses less digits than its factorization.

12838634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20824.

The product of its digits is 27648, while the sum is 35.

The square root of 12838634 is about 3583.1039616511. The cubic root of 12838634 is about 234.1565295500.

The spelling of 12838634 in words is "twelve million, eight hundred thirty-eight thousand, six hundred thirty-four".