12628019 has 2 divisors, whose sum is σ = 12628020. Its totient is φ = 12628018.

The previous prime is 12628013. The next prime is 12628069. The reversal of 12628019 is 91082621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12628019 - 2⁸ = 12627763 is a prime.

It is a super-2 number, since 2×12628019² = 318933727728722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 12627982 and 12628000.

It is not a weakly prime, because it can be changed into another prime (12628013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6314009 + 6314010.

It is an arithmetic number, because the mean of its divisors is an integer number (6314010).

Almost surely, 2^12628019 is an apocalyptic number.

12628019 is a deficient number, since it is larger than the sum of its proper divisors (1).

12628019 is an equidigital number, since it uses as much as digits as its factorization.

12628019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 12628019 is about 3553.5924076911. The cubic root of 12628019 is about 232.8690343224.

The spelling of 12628019 in words is "twelve million, six hundred twenty-eight thousand, nineteen".