12655722 has 8 divisors (see below), whose sum is σ = 25311456. Its totient is φ = 4218572.

The previous prime is 12655703. The next prime is 12655733. The reversal of 12655722 is 22755621.

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

12655722 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 12655722.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1054638 + ... + 1054649.

It is an arithmetic number, because the mean of its divisors is an integer number (3163932).

Almost surely, 2^12655722 is an apocalyptic number.

12655722 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12655722 is a wasteful number, since it uses less digits than its factorization.

12655722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2109292.

The product of its digits is 8400, while the sum is 30.

The square root of 12655722 is about 3557.4881587997. The cubic root of 12655722 is about 233.0391971731.

The spelling of 12655722 in words is "twelve million, six hundred fifty-five thousand, seven hundred twenty-two".