12620407 has 2 divisors, whose sum is σ = 12620408. Its totient is φ = 12620406.

The previous prime is 12620401. The next prime is 12620417. The reversal of 12620407 is 70402621.

It is a weak prime.

It is an emirp because it is prime and its reverse (70402621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12620407 is a prime.

It is a super-3 number, since 3×12620407³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12620401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6310203 + 6310204.

It is an arithmetic number, because the mean of its divisors is an integer number (6310204).

Almost surely, 2^12620407 is an apocalyptic number.

12620407 is a deficient number, since it is larger than the sum of its proper divisors (1).

12620407 is an equidigital number, since it uses as much as digits as its factorization.

12620407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 12620407 is about 3552.5212173891. The cubic root of 12620407 is about 232.8222348106.

The spelling of 12620407 in words is "twelve million, six hundred twenty thousand, four hundred seven".