12628597 has 4 divisors (see below), whose sum is σ = 13293280. Its totient is φ = 11963916.

The previous prime is 12628591. The next prime is 12628607. The reversal of 12628597 is 79582621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79582621 = 19 ⋅4188559.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12628597 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 (12628591) 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 3 ways as a sum of consecutive naturals, for example, 332313 + ... + 332350.

It is an arithmetic number, because the mean of its divisors is an integer number (3323320).

Almost surely, 2^12628597 is an apocalyptic number.

It is an amenable number.

12628597 is a deficient number, since it is larger than the sum of its proper divisors (664683).

12628597 is an equidigital number, since it uses as much as digits as its factorization.

12628597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664682.

The product of its digits is 60480, while the sum is 40.

The square root of 12628597 is about 3553.6737329136. The cubic root of 12628597 is about 232.8725871692.

It can be divided in two parts, 12628 and 597, that added together give a square (13225 = 115²).

The spelling of 12628597 in words is "twelve million, six hundred twenty-eight thousand, five hundred ninety-seven".