12622649 has 16 divisors (see below), whose sum is σ = 14122752. Its totient is φ = 11207808.

The previous prime is 12622633. The next prime is 12622663. The reversal of 12622649 is 94622621.

It is not a de Polignac number, because 12622649 - 2⁴ = 12622633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12622609) 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 in 15 ways as a sum of consecutive naturals, for example, 44462 + ... + 44744.

It is an arithmetic number, because the mean of its divisors is an integer number (882672).

Almost surely, 2^12622649 is an apocalyptic number.

It is an amenable number.

12622649 is a deficient number, since it is larger than the sum of its proper divisors (1500103).

12622649 is a wasteful number, since it uses less digits than its factorization.

12622649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416.

The product of its digits is 10368, while the sum is 32.

The square root of 12622649 is about 3552.8367539193. The cubic root of 12622649 is about 232.8360208568.

The spelling of 12622649 in words is "twelve million, six hundred twenty-two thousand, six hundred forty-nine".