12628047 has 4 divisors (see below), whose sum is σ = 16837400. Its totient is φ = 8418696.

The previous prime is 12628019. The next prime is 12628069. The reversal of 12628047 is 74082621.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12628047 - 2⁶ = 12627983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12628547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2104672 + ... + 2104677.

It is an arithmetic number, because the mean of its divisors is an integer number (4209350).

Almost surely, 2^12628047 is an apocalyptic number.

12628047 is a deficient number, since it is larger than the sum of its proper divisors (4209353).

12628047 is an equidigital number, since it uses as much as digits as its factorization.

12628047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4209352.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 12628047 is about 3553.5963473642. The cubic root of 12628047 is about 232.8692064352.

The spelling of 12628047 in words is "twelve million, six hundred twenty-eight thousand, forty-seven".