12503928 has 32 divisors (see below), whose sum is σ = 32106960. Its totient is φ = 4055040.

The previous prime is 12503923. The next prime is 12503941. The reversal of 12503928 is 82930521.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12503895 and 12503904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12503923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6153 + ... + 7928.

Almost surely, 2^12503928 is an apocalyptic number.

It is an amenable number.

12503928 is an abundant number, since it is smaller than the sum of its proper divisors (19603032).

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

12503928 is a wasteful number, since it uses less digits than its factorization.

12503928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14127 (or 14123 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 12503928 is about 3536.0893653866. The cubic root of 12503928 is about 232.1037486827.

It can be divided in two parts, 12503 and 928, that added together give a palindrome (13431).

The spelling of 12503928 in words is "twelve million, five hundred three thousand, nine hundred twenty-eight".