12899924 has 6 divisors (see below), whose sum is σ = 22574874. Its totient is φ = 6449960.

The previous prime is 12899899. The next prime is 12899951. The reversal of 12899924 is 42999821.

It can be written as a sum of positive squares in only one way, i.e., 10679824 + 2220100 = 3268^2 + 1490^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1612487 + ... + 1612494.

It is an arithmetic number, because the mean of its divisors is an integer number (3762479).

Almost surely, 2^12899924 is an apocalyptic number.

It is an amenable number.

12899924 is a deficient number, since it is larger than the sum of its proper divisors (9674950).

12899924 is a wasteful number, since it uses less digits than its factorization.

12899924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3224985 (or 3224983 counting only the distinct ones).

The product of its digits is 93312, while the sum is 44.

The square root of 12899924 is about 3591.6464191231. The cubic root of 12899924 is about 234.5285493130.

The spelling of 12899924 in words is "twelve million, eight hundred ninety-nine thousand, nine hundred twenty-four".