12620611 has 2 divisors, whose sum is σ = 12620612. Its totient is φ = 12620610.

The previous prime is 12620609. The next prime is 12620623. The reversal of 12620611 is 11602621.

It is a weak prime.

It is an emirp because it is prime and its reverse (11602621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12620611 - 2¹ = 12620609 is a prime.

Together with 12620609, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12620011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6310305 + 6310306.

It is an arithmetic number, because the mean of its divisors is an integer number (6310306).

Almost surely, 2^12620611 is an apocalyptic number.

12620611 is a deficient number, since it is larger than the sum of its proper divisors (1).

12620611 is an equidigital number, since it uses as much as digits as its factorization.

12620611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 12620611 is about 3552.5499292762. The cubic root of 12620611 is about 232.8234892730.

It can be divided in two parts, 12620 and 611, that added together give a palindrome (13231).

The spelling of 12620611 in words is "twelve million, six hundred twenty thousand, six hundred eleven".