12622429 has 2 divisors, whose sum is σ = 12622430. Its totient is φ = 12622428.

The previous prime is 12622417. The next prime is 12622457. The reversal of 12622429 is 92422621.

It is an a-pointer prime, because the next prime (12622457) can be obtained adding 12622429 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12089529 + 532900 = 3477^2 + 730^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12622429 is a prime.

It is a Chen prime.

It is equal to p₈₂₆₁₉₂ and since 12622429 and 826192 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 12622397 and 12622406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12622459) 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 as a sum of consecutive naturals, namely, 6311214 + 6311215.

It is an arithmetic number, because the mean of its divisors is an integer number (6311215).

Almost surely, 2^12622429 is an apocalyptic number.

It is an amenable number.

12622429 is a deficient number, since it is larger than the sum of its proper divisors (1).

12622429 is an equidigital number, since it uses as much as digits as its factorization.

12622429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 28.

The square root of 12622429 is about 3552.8057926096. The cubic root of 12622429 is about 232.8346681502.

It can be divided in two parts, 126224 and 29, that added together give a triangular number (126253 = T₅₀₂).

The spelling of 12622429 in words is "twelve million, six hundred twenty-two thousand, four hundred twenty-nine".