12999928 has 8 divisors (see below), whose sum is σ = 24374880. Its totient is φ = 6499960.

The previous prime is 12999919. The next prime is 12999929. The reversal of 12999928 is 82999921.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12999929) 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, 812488 + ... + 812503.

It is an arithmetic number, because the mean of its divisors is an integer number (3046860).

Almost surely, 2^12999928 is an apocalyptic number.

It is an amenable number.

12999928 is a deficient number, since it is larger than the sum of its proper divisors (11374952).

12999928 is a wasteful number, since it uses less digits than its factorization.

12999928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1624997 (or 1624993 counting only the distinct ones).

The product of its digits is 209952, while the sum is 49.

The square root of 12999928 is about 3605.5412908466. The cubic root of 12999928 is about 235.1330346787.

The spelling of 12999928 in words is "twelve million, nine hundred ninety-nine thousand, nine hundred twenty-eight".