12617807 has 2 divisors, whose sum is σ = 12617808. Its totient is φ = 12617806.

The previous prime is 12617783. The next prime is 12617819. The reversal of 12617807 is 70871621.

12617807 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12617807 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12617867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6308903 + 6308904.

It is an arithmetic number, because the mean of its divisors is an integer number (6308904).

Almost surely, 2^12617807 is an apocalyptic number.

12617807 is a deficient number, since it is larger than the sum of its proper divisors (1).

12617807 is an equidigital number, since it uses as much as digits as its factorization.

12617807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 32.

The square root of 12617807 is about 3552.1552612463. The cubic root of 12617807 is about 232.8062453795.

The spelling of 12617807 in words is "twelve million, six hundred seventeen thousand, eight hundred seven".