12628319 has 4 divisors (see below), whose sum is σ = 13776360. Its totient is φ = 11480280.

The previous prime is 12628307. The next prime is 12628321. The reversal of 12628319 is 91382621.

12628319 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12628319 - 2⁴ = 12628303 is a prime.

It is a super-2 number, since 2×12628319² = 318948881531522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12628339) 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, 574004 + ... + 574025.

It is an arithmetic number, because the mean of its divisors is an integer number (3444090).

Almost surely, 2^12628319 is an apocalyptic number.

12628319 is a deficient number, since it is larger than the sum of its proper divisors (1148041).

12628319 is a wasteful number, since it uses less digits than its factorization.

12628319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148040.

The product of its digits is 5184, while the sum is 32.

The square root of 12628319 is about 3553.6346182465. The cubic root of 12628319 is about 232.8708783741.

The spelling of 12628319 in words is "twelve million, six hundred twenty-eight thousand, three hundred nineteen".