12628899 has 8 divisors (see below), whose sum is σ = 18709520. Its totient is φ = 8419248.

The previous prime is 12628879. The next prime is 12628907. The reversal of 12628899 is 99882621.

12628899 is a `hidden beast` number, since 12 + 628 + 8 + 9 + 9 = 666.

It is not a de Polignac number, because 12628899 - 2¹¹ = 12626851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12628859) 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 in 7 ways as a sum of consecutive naturals, for example, 233842 + ... + 233895.

It is an arithmetic number, because the mean of its divisors is an integer number (2338690).

Almost surely, 2^12628899 is an apocalyptic number.

12628899 is a deficient number, since it is larger than the sum of its proper divisors (6080621).

12628899 is an equidigital number, since it uses as much as digits as its factorization.

12628899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467746 (or 467740 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 12628899 is about 3553.7162238986. The cubic root of 12628899 is about 232.8744434577.

The spelling of 12628899 in words is "twelve million, six hundred twenty-eight thousand, eight hundred ninety-nine".