12629389 has 4 divisors (see below), whose sum is σ = 12714300. Its totient is φ = 12544480.

The previous prime is 12629387. The next prime is 12629411. The reversal of 12629389 is 98392621.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2832489 + 9796900 = 1683^2 + 3130^2 .

It is a cyclic number.

It is not a de Polignac number, because 12629389 - 2¹ = 12629387 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12629381) 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, 42232 + ... + 42529.

It is an arithmetic number, because the mean of its divisors is an integer number (3178575).

Almost surely, 2^12629389 is an apocalyptic number.

It is an amenable number.

12629389 is a deficient number, since it is larger than the sum of its proper divisors (84911).

12629389 is an equidigital number, since it uses as much as digits as its factorization.

12629389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84910.

The product of its digits is 46656, while the sum is 40.

The square root of 12629389 is about 3553.7851651443. The cubic root of 12629389 is about 232.8774552537.

The spelling of 12629389 in words is "twelve million, six hundred twenty-nine thousand, three hundred eighty-nine".