12817388 has 12 divisors (see below), whose sum is σ = 23749992. Its totient is φ = 6031680.

The previous prime is 12817373. The next prime is 12817421. The reversal of 12817388 is 88371821.

It is an unprimeable number.

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, 94178 + ... + 94313.

It is an arithmetic number, because the mean of its divisors is an integer number (1979166).

Almost surely, 2^12817388 is an apocalyptic number.

It is an amenable number.

12817388 is a deficient number, since it is larger than the sum of its proper divisors (10932604).

12817388 is a wasteful number, since it uses less digits than its factorization.

12817388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188512 (or 188510 counting only the distinct ones).

The product of its digits is 21504, while the sum is 38.

The square root of 12817388 is about 3580.1379861676. The cubic root of 12817388 is about 234.0272936727.

The spelling of 12817388 in words is "twelve million, eight hundred seventeen thousand, three hundred eighty-eight".