12617477 has 2 divisors, whose sum is σ = 12617478. Its totient is φ = 12617476.

The previous prime is 12617461. The next prime is 12617483. The reversal of 12617477 is 77471621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9523396 + 3094081 = 3086^2 + 1759^2 .

It is an emirp because it is prime and its reverse (77471621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12617477 - 2⁴ = 12617461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12617497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6308738 + 6308739.

It is an arithmetic number, because the mean of its divisors is an integer number (6308739).

Almost surely, 2^12617477 is an apocalyptic number.

It is an amenable number.

12617477 is a deficient number, since it is larger than the sum of its proper divisors (1).

12617477 is an equidigital number, since it uses as much as digits as its factorization.

12617477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16464, while the sum is 35.

The square root of 12617477 is about 3552.1088102703. The cubic root of 12617477 is about 232.8042157946.

The spelling of 12617477 in words is "twelve million, six hundred seventeen thousand, four hundred seventy-seven".