12791963 has 4 divisors (see below), whose sum is σ = 12837768. Its totient is φ = 12746160.

The previous prime is 12791951. The next prime is 12791969. The reversal of 12791963 is 36919721.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36919721 = 41 ⋅900481.

It is not a de Polignac number, because 12791963 - 2¹² = 12787867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12791969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22481 + ... + 23042.

It is an arithmetic number, because the mean of its divisors is an integer number (3209442).

Almost surely, 2^12791963 is an apocalyptic number.

12791963 is a deficient number, since it is larger than the sum of its proper divisors (45805).

12791963 is an equidigital number, since it uses as much as digits as its factorization.

12791963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45804.

The product of its digits is 20412, while the sum is 38.

The square root of 12791963 is about 3576.5853827359. The cubic root of 12791963 is about 233.8724497845.

The spelling of 12791963 in words is "twelve million, seven hundred ninety-one thousand, nine hundred sixty-three".