12903928 has 8 divisors (see below), whose sum is σ = 24194880. Its totient is φ = 6451960.

The previous prime is 12903911. The next prime is 12903929. The reversal of 12903928 is 82930921.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×12903928² = 333022715658368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12903893 and 12903902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12903929) 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 as a sum of consecutive naturals, namely, 806488 + ... + 806503.

It is an arithmetic number, because the mean of its divisors is an integer number (3024360).

Almost surely, 2^12903928 is an apocalyptic number.

It is an amenable number.

12903928 is a deficient number, since it is larger than the sum of its proper divisors (11290952).

12903928 is a wasteful number, since it uses less digits than its factorization.

12903928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1612997 (or 1612993 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 12903928 is about 3592.2037804111. The cubic root of 12903928 is about 234.5528118635.

It can be divided in two parts, 12903 and 928, that added together give a palindrome (13831).

The spelling of 12903928 in words is "twelve million, nine hundred three thousand, nine hundred twenty-eight".