12273786 has 48 divisors (see below), whose sum is σ = 31449600. Its totient is φ = 3384864.

The previous prime is 12273773. The next prime is 12273787. The reversal of 12273786 is 68737221.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12273786.

It is not an unprimeable number, because it can be changed into a prime (12273787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1975 + ... + 5333.

It is an arithmetic number, because the mean of its divisors is an integer number (655200).

Almost surely, 2^12273786 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12273786, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15724800).

12273786 is an abundant number, since it is smaller than the sum of its proper divisors (19175814).

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

12273786 is a wasteful number, since it uses less digits than its factorization.

12273786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3403 (or 3400 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 12273786 is about 3503.3963521132. The cubic root of 12273786 is about 230.6709206376.

The spelling of 12273786 in words is "twelve million, two hundred seventy-three thousand, seven hundred eighty-six".