12217874 has 16 divisors (see below), whose sum is σ = 19958400. Its totient is φ = 5587344.

The previous prime is 12217867. The next prime is 12217879. The reversal of 12217874 is 47871221.

It is a happy number.

12217874 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12217874.

It is not an unprimeable number, because it can be changed into a prime (12217879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4442 + ... + 6645.

It is an arithmetic number, because the mean of its divisors is an integer number (1247400).

Almost surely, 2^12217874 is an apocalyptic number.

12217874 is a deficient number, since it is larger than the sum of its proper divisors (7740526).

12217874 is a wasteful number, since it uses less digits than its factorization.

12217874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11137.

The product of its digits is 6272, while the sum is 32.

The square root of 12217874 is about 3495.4075584973. The cubic root of 12217874 is about 230.3201213459.

The spelling of 12217874 in words is "twelve million, two hundred seventeen thousand, eight hundred seventy-four".