12622997 has 2 divisors, whose sum is σ = 12622998. Its totient is φ = 12622996.

The previous prime is 12622979. The next prime is 12623003. The reversal of 12622997 is 79922621.

Together with previous prime (12622979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10797796 + 1825201 = 3286^2 + 1351^2 .

It is an emirp because it is prime and its reverse (79922621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12622997 - 2⁶ = 12622933 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12622997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12622937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6311498 + 6311499.

It is an arithmetic number, because the mean of its divisors is an integer number (6311499).

Almost surely, 2^12622997 is an apocalyptic number.

It is an amenable number.

12622997 is a deficient number, since it is larger than the sum of its proper divisors (1).

12622997 is an equidigital number, since it uses as much as digits as its factorization.

12622997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 38.

The square root of 12622997 is about 3552.8857285311. The cubic root of 12622997 is about 232.8381605606.

The spelling of 12622997 in words is "twelve million, six hundred twenty-two thousand, nine hundred ninety-seven".