12523928 has 8 divisors (see below), whose sum is σ = 23482380. Its totient is φ = 6261960.

The previous prime is 12523921. The next prime is 12523939. The reversal of 12523928 is 82932521.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 12523894 and 12523903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12523921) 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, 782738 + ... + 782753.

Almost surely, 2^12523928 is an apocalyptic number.

It is an amenable number.

12523928 is a deficient number, since it is larger than the sum of its proper divisors (10958452).

12523928 is a wasteful number, since it uses less digits than its factorization.

12523928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565497 (or 1565493 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 12523928 is about 3538.9162182793. The cubic root of 12523928 is about 232.2274325409.

The spelling of 12523928 in words is "twelve million, five hundred twenty-three thousand, nine hundred twenty-eight".