12266397 has 48 divisors (see below), whose sum is σ = 21647808. Its totient is φ = 6842880.

The previous prime is 12266393. The next prime is 12266407. The reversal of 12266397 is 79366221.

12266397 is a `hidden beast` number, since 1 + 2 + 266 + 397 = 666.

It is not a de Polignac number, because 12266397 - 2² = 12266393 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12266393) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34573 + ... + 34925.

It is an arithmetic number, because the mean of its divisors is an integer number (450996).

Almost surely, 2^12266397 is an apocalyptic number.

It is an amenable number.

12266397 is a deficient number, since it is larger than the sum of its proper divisors (9381411).

12266397 is a wasteful number, since it uses less digits than its factorization.

12266397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392 (or 380 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 12266397 is about 3502.3416452425. The cubic root of 12266397 is about 230.6246222480.

It can be divided in two parts, 122663 and 97, that added together give a triangular number (122760 = T₄₉₅).

The spelling of 12266397 in words is "twelve million, two hundred sixty-six thousand, three hundred ninety-seven".