12397963 has 4 divisors (see below), whose sum is σ = 12434040. Its totient is φ = 12361888.

The previous prime is 12397961. The next prime is 12397969. The reversal of 12397963 is 36979321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12397963 - 2¹ = 12397961 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12397961) 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, 17518 + ... + 18211.

It is an arithmetic number, because the mean of its divisors is an integer number (3108510).

Almost surely, 2^12397963 is an apocalyptic number.

12397963 is a deficient number, since it is larger than the sum of its proper divisors (36077).

12397963 is an equidigital number, since it uses as much as digits as its factorization.

12397963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36076.

The product of its digits is 61236, while the sum is 40.

The square root of 12397963 is about 3521.0741258883. The cubic root of 12397963 is about 231.4462305168.

The spelling of 12397963 in words is "twelve million, three hundred ninety-seven thousand, nine hundred sixty-three".