12807838 has 8 divisors (see below), whose sum is σ = 19537560. Its totient is φ = 6295320.

The previous prime is 12807799. The next prime is 12807857. The reversal of 12807838 is 83870821.

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 = 12807797 and 12807806.

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, 54153 + ... + 54388.

It is an arithmetic number, because the mean of its divisors is an integer number (2442195).

Almost surely, 2^12807838 is an apocalyptic number.

12807838 is a deficient number, since it is larger than the sum of its proper divisors (6729722).

12807838 is a wasteful number, since it uses less digits than its factorization.

12807838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108602.

The product of its (nonzero) digits is 21504, while the sum is 37.

The square root of 12807838 is about 3578.8039901621. The cubic root of 12807838 is about 233.9691560875.

The spelling of 12807838 in words is "twelve million, eight hundred seven thousand, eight hundred thirty-eight".