12624817 has 2 divisors, whose sum is σ = 12624818. Its totient is φ = 12624816.

The previous prime is 12624803. The next prime is 12624847. The reversal of 12624817 is 71842621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8767521 + 3857296 = 2961^2 + 1964^2 .

It is an emirp because it is prime and its reverse (71842621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12624817 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12624847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6312408 + 6312409.

It is an arithmetic number, because the mean of its divisors is an integer number (6312409).

Almost surely, 2^12624817 is an apocalyptic number.

It is an amenable number.

12624817 is a deficient number, since it is larger than the sum of its proper divisors (1).

12624817 is an equidigital number, since it uses as much as digits as its factorization.

12624817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 31.

The square root of 12624817 is about 3553.1418491245. The cubic root of 12624817 is about 232.8493503250.

The spelling of 12624817 in words is "twelve million, six hundred twenty-four thousand, eight hundred seventeen".