12624429 has 4 divisors (see below), whose sum is σ = 16832576. Its totient is φ = 8416284.

The previous prime is 12624427. The next prime is 12624431. The reversal of 12624429 is 92442621.

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: 92442621 = 3 ⋅30814207.

It is an interprime number because it is at equal distance from previous prime (12624427) and next prime (12624431).

It is not a de Polignac number, because 12624429 - 2¹ = 12624427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12624396 and 12624405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12624427) 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, 2104069 + ... + 2104074.

It is an arithmetic number, because the mean of its divisors is an integer number (4208144).

Almost surely, 2^12624429 is an apocalyptic number.

It is an amenable number.

12624429 is a deficient number, since it is larger than the sum of its proper divisors (4208147).

12624429 is an equidigital number, since it uses as much as digits as its factorization.

12624429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4208146.

The product of its digits is 6912, while the sum is 30.

The square root of 12624429 is about 3553.0872491398. The cubic root of 12624429 is about 232.8469649050.

The spelling of 12624429 in words is "twelve million, six hundred twenty-four thousand, four hundred twenty-nine".