12903646 has 16 divisors (see below), whose sum is σ = 23422176. Its totient is φ = 5204736.

The previous prime is 12903613. The next prime is 12903647. The reversal of 12903646 is 64630921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12903647) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 26871 + ... + 27346.

It is an arithmetic number, because the mean of its divisors is an integer number (1463886).

Almost surely, 2^12903646 is an apocalyptic number.

12903646 is a deficient number, since it is larger than the sum of its proper divisors (10518530).

12903646 is a wasteful number, since it uses less digits than its factorization.

12903646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54243.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 12903646 is about 3592.1645285259. The cubic root of 12903646 is about 234.5511032268.

It can be divided in two parts, 12903 and 646, that multiplied together give a palindrome (8335338).

The spelling of 12903646 in words is "twelve million, nine hundred three thousand, six hundred forty-six".