12990896 has 10 divisors (see below), whose sum is σ = 25169892. Its totient is φ = 6495440.

The previous prime is 12990871. The next prime is 12990899. The reversal of 12990896 is 69809921.

12990896 is nontrivially palindromic in base 3.

It is not an unprimeable number, because it can be changed into a prime (12990899) by changing a digit.

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, 405950 + ... + 405981.

Almost surely, 2^12990896 is an apocalyptic number.

12990896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12990896 is a deficient number, since it is larger than the sum of its proper divisors (12178996).

12990896 is an equidigital number, since it uses as much as digits as its factorization.

12990896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811939 (or 811933 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 12990896 is about 3604.2885567057. The cubic root of 12990896 is about 235.0785673618.

The spelling of 12990896 in words is "twelve million, nine hundred ninety thousand, eight hundred ninety-six".