12889622 has 8 divisors (see below), whose sum is σ = 19360296. Its totient is φ = 6436192.

The previous prime is 12889607. The next prime is 12889627. The reversal of 12889622 is 22698821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12889622² = 332284710605768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12889627) 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 3 ways as a sum of consecutive naturals, for example, 2243 + ... + 5550.

It is an arithmetic number, because the mean of its divisors is an integer number (2420037).

Almost surely, 2^12889622 is an apocalyptic number.

12889622 is a deficient number, since it is larger than the sum of its proper divisors (6470674).

12889622 is an equidigital number, since it uses as much as digits as its factorization.

12889622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8622.

The product of its digits is 27648, while the sum is 38.

The square root of 12889622 is about 3590.2119714580. The cubic root of 12889622 is about 234.4661004547.

The spelling of 12889622 in words is "twelve million, eight hundred eighty-nine thousand, six hundred twenty-two".