12197937 has 4 divisors (see below), whose sum is σ = 16263920. Its totient is φ = 8131956.

The previous prime is 12197921. The next prime is 12197947. The reversal of 12197937 is 73979121.

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.

It is not a de Polignac number, because 12197937 - 2⁴ = 12197921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12197895 and 12197904.

It is not an unprimeable number, because it can be changed into a prime (12197917) 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, 2032987 + ... + 2032992.

It is an arithmetic number, because the mean of its divisors is an integer number (4065980).

Almost surely, 2^12197937 is an apocalyptic number.

It is an amenable number.

12197937 is a deficient number, since it is larger than the sum of its proper divisors (4065983).

12197937 is an equidigital number, since it uses as much as digits as its factorization.

12197937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4065982.

The product of its digits is 23814, while the sum is 39.

The square root of 12197937 is about 3492.5545092382. The cubic root of 12197937 is about 230.1947751470.

The spelling of 12197937 in words is "twelve million, one hundred ninety-seven thousand, nine hundred thirty-seven".