12998836 has 6 divisors (see below), whose sum is σ = 22747970. Its totient is φ = 6499416.

The previous prime is 12998819. The next prime is 12998849. The reversal of 12998836 is 63889921.

It can be written as a sum of positive squares in only one way, i.e., 8820900 + 4177936 = 2970^2 + 2044^2 .

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, 1624851 + ... + 1624858.

Almost surely, 2^12998836 is an apocalyptic number.

It is an amenable number.

12998836 is a deficient number, since it is larger than the sum of its proper divisors (9749134).

12998836 is a wasteful number, since it uses less digits than its factorization.

12998836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3249713 (or 3249711 counting only the distinct ones).

The product of its digits is 186624, while the sum is 46.

The square root of 12998836 is about 3605.3898540935. The cubic root of 12998836 is about 235.1264507329.

The spelling of 12998836 in words is "twelve million, nine hundred ninety-eight thousand, eight hundred thirty-six".