12617047 has 2 divisors, whose sum is σ = 12617048. Its totient is φ = 12617046.

The previous prime is 12617039. The next prime is 12617051. The reversal of 12617047 is 74071621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12617047 - 2³ = 12617039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12617747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6308523 + 6308524.

It is an arithmetic number, because the mean of its divisors is an integer number (6308524).

Almost surely, 2^12617047 is an apocalyptic number.

12617047 is a deficient number, since it is larger than the sum of its proper divisors (1).

12617047 is an equidigital number, since it uses as much as digits as its factorization.

12617047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 12617047 is about 3552.0482823295. The cubic root of 12617047 is about 232.8015711309.

Adding to 12617047 its reverse (74071621), we get a palindrome (86688668).

The spelling of 12617047 in words is "twelve million, six hundred seventeen thousand, forty-seven".