12938506 has 32 divisors (see below), whose sum is σ = 23592960. Its totient is φ = 5198256.

The previous prime is 12938503. The next prime is 12938507. The reversal of 12938506 is 60583921.

It is not an unprimeable number, because it can be changed into a prime (12938503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33591 + ... + 33973.

It is an arithmetic number, because the mean of its divisors is an integer number (737280).

Almost surely, 2^12938506 is an apocalyptic number.

12938506 is a deficient number, since it is larger than the sum of its proper divisors (10654454).

12938506 is a wasteful number, since it uses less digits than its factorization.

12938506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 12938506 is about 3597.0134834332. The cubic root of 12938506 is about 234.7621314231.

The spelling of 12938506 in words is "twelve million, nine hundred thirty-eight thousand, five hundred six".