12418997 has 4 divisors (see below), whose sum is σ = 12439680. Its totient is φ = 12398316.

The previous prime is 12418981. The next prime is 12418999. The reversal of 12418997 is 79981421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79981421 = 13 ⋅6152417.

It is a cyclic number.

It is not a de Polignac number, because 12418997 - 2⁴ = 12418981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12418999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9413 + ... + 10650.

It is an arithmetic number, because the mean of its divisors is an integer number (3109920).

Almost surely, 2^12418997 is an apocalyptic number.

It is an amenable number.

12418997 is a deficient number, since it is larger than the sum of its proper divisors (20683).

12418997 is an equidigital number, since it uses as much as digits as its factorization.

12418997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20682.

The product of its digits is 36288, while the sum is 41.

The square root of 12418997 is about 3524.0597327514. The cubic root of 12418997 is about 231.5770447348.

The spelling of 12418997 in words is "twelve million, four hundred eighteen thousand, nine hundred ninety-seven".