12617849 has 2 divisors, whose sum is σ = 12617850. Its totient is φ = 12617848.

The previous prime is 12617833. The next prime is 12617863. The reversal of 12617849 is 94871621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7327849 + 5290000 = 2707^2 + 2300^2 .

It is a cyclic number.

It is not a de Polignac number, because 12617849 - 2⁴ = 12617833 is a prime.

It is a super-2 number, since 2×12617849² = 318420226773602, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12617819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6308924 + 6308925.

It is an arithmetic number, because the mean of its divisors is an integer number (6308925).

Almost surely, 2^12617849 is an apocalyptic number.

It is an amenable number.

12617849 is a deficient number, since it is larger than the sum of its proper divisors (1).

12617849 is an equidigital number, since it uses as much as digits as its factorization.

12617849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 38.

The square root of 12617849 is about 3552.1611731452. The cubic root of 12617849 is about 232.8065036877.

The spelling of 12617849 in words is "twelve million, six hundred seventeen thousand, eight hundred forty-nine".