12603397 has 4 divisors (see below), whose sum is σ = 12650176. Its totient is φ = 12556620.

The previous prime is 12603373. The next prime is 12603407. The reversal of 12603397 is 79330621.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12603397 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 (12603317) 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, 22983 + ... + 23524.

It is an arithmetic number, because the mean of its divisors is an integer number (3162544).

Almost surely, 2^12603397 is an apocalyptic number.

It is an amenable number.

12603397 is a deficient number, since it is larger than the sum of its proper divisors (46779).

12603397 is an equidigital number, since it uses as much as digits as its factorization.

12603397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46778.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 12603397 is about 3550.1263357802. The cubic root of 12603397 is about 232.7175871870.

The spelling of 12603397 in words is "twelve million, six hundred three thousand, three hundred ninety-seven".