12622417 has 2 divisors, whose sum is σ = 12622418. Its totient is φ = 12622416.

The previous prime is 12622387. The next prime is 12622429. The reversal of 12622417 is 71422621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8059921 + 4562496 = 2839^2 + 2136^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12622417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12622391 and 12622400.

It is not a weakly prime, because it can be changed into another prime (12622457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6311208 + 6311209.

It is an arithmetic number, because the mean of its divisors is an integer number (6311209).

Almost surely, 2^12622417 is an apocalyptic number.

It is an amenable number.

12622417 is a deficient number, since it is larger than the sum of its proper divisors (1).

12622417 is an equidigital number, since it uses as much as digits as its factorization.

12622417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1344, while the sum is 25.

The square root of 12622417 is about 3552.8041038031. The cubic root of 12622417 is about 232.8345943658.

The spelling of 12622417 in words is "twelve million, six hundred twenty-two thousand, four hundred seventeen".