12629399 has 4 divisors (see below), whose sum is σ = 12670320. Its totient is φ = 12588480.

The previous prime is 12629387. The next prime is 12629411. The reversal of 12629399 is 99392621.

12629399 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, and also an emirpimes, since its reverse is a distinct semiprime: 99392621 = 107 ⋅928903.

It is an interprime number because it is at equal distance from previous prime (12629387) and next prime (12629411).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12629399 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 (12629329) 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, 19994 + ... + 20615.

It is an arithmetic number, because the mean of its divisors is an integer number (3167580).

Almost surely, 2^12629399 is an apocalyptic number.

12629399 is a deficient number, since it is larger than the sum of its proper divisors (40921).

12629399 is an equidigital number, since it uses as much as digits as its factorization.

12629399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40920.

The product of its digits is 52488, while the sum is 41.

The square root of 12629399 is about 3553.7865720946. The cubic root of 12629399 is about 232.8775167181.

The spelling of 12629399 in words is "twelve million, six hundred twenty-nine thousand, three hundred ninety-nine".