12624749 has 2 divisors, whose sum is σ = 12624750. Its totient is φ = 12624748.

The previous prime is 12624737. The next prime is 12624751. The reversal of 12624749 is 94742621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8743849 + 3880900 = 2957^2 + 1970^2 .

It is a cyclic number.

It is not a de Polignac number, because 12624749 - 2¹² = 12620653 is a prime.

Together with 12624751, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12624049) 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, 6312374 + 6312375.

It is an arithmetic number, because the mean of its divisors is an integer number (6312375).

Almost surely, 2^12624749 is an apocalyptic number.

It is an amenable number.

12624749 is a deficient number, since it is larger than the sum of its proper divisors (1).

12624749 is an equidigital number, since it uses as much as digits as its factorization.

12624749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 35.

The square root of 12624749 is about 3553.1322801157. The cubic root of 12624749 is about 232.8489322653.

The spelling of 12624749 in words is "twelve million, six hundred twenty-four thousand, seven hundred forty-nine".