12503838 has 8 divisors (see below), whose sum is σ = 25007688. Its totient is φ = 4167944.

The previous prime is 12503837. The next prime is 12503849. The reversal of 12503838 is 83830521.

It is a happy number.

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

12503838 is an admirable number.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12503831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1041981 + ... + 1041992.

It is an arithmetic number, because the mean of its divisors is an integer number (3125961).

Almost surely, 2^12503838 is an apocalyptic number.

12503838 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12503838 is a wasteful number, since it uses less digits than its factorization.

12503838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2083978.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 12503838 is about 3536.0766394409. The cubic root of 12503838 is about 232.1031918073.

The spelling of 12503838 in words is "twelve million, five hundred three thousand, eight hundred thirty-eight".