12808898 has 4 divisors (see below), whose sum is σ = 19213350. Its totient is φ = 6404448.

The previous prime is 12808891. The next prime is 12808903. The reversal of 12808898 is 89880821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89880821 = 127 ⋅707723.

It can be written as a sum of positive squares in only one way, i.e., 8369449 + 4439449 = 2893^2 + 2107^2 .

It is not an unprimeable number, because it can be changed into a prime (12808891) 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, 3202223 + ... + 3202226.

Almost surely, 2^12808898 is an apocalyptic number.

12808898 is a deficient number, since it is larger than the sum of its proper divisors (6404452).

12808898 is an equidigital number, since it uses as much as digits as its factorization.

12808898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6404451.

The product of its (nonzero) digits is 73728, while the sum is 44.

The square root of 12808898 is about 3578.9520812662. The cubic root of 12808898 is about 233.9756104806.

The spelling of 12808898 in words is "twelve million, eight hundred eight thousand, eight hundred ninety-eight".