12397475 has 6 divisors (see below), whose sum is σ = 15372900. Its totient is φ = 9917960.

The previous prime is 12397453. The next prime is 12397477. The reversal of 12397475 is 57479321.

It is a de Polignac number, because none of the positive numbers 2^k-12397475 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12397477) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 247925 + ... + 247974.

It is an arithmetic number, because the mean of its divisors is an integer number (2562150).

Almost surely, 2^12397475 is an apocalyptic number.

12397475 is a deficient number, since it is larger than the sum of its proper divisors (2975425).

12397475 is an equidigital number, since it uses as much as digits as its factorization.

12397475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495909 (or 495904 counting only the distinct ones).

The product of its digits is 52920, while the sum is 38.

The square root of 12397475 is about 3521.0048281705. The cubic root of 12397475 is about 231.4431938018.

The spelling of 12397475 in words is "twelve million, three hundred ninety-seven thousand, four hundred seventy-five".