12773897 has 4 divisors (see below), whose sum is σ = 12781056. Its totient is φ = 12766740.

The previous prime is 12773879. The next prime is 12773911. The reversal of 12773897 is 79837721.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12773897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12773807) 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, 1508 + ... + 5274.

It is an arithmetic number, because the mean of its divisors is an integer number (3195264).

Almost surely, 2^12773897 is an apocalyptic number.

It is an amenable number.

12773897 is a deficient number, since it is larger than the sum of its proper divisors (7159).

12773897 is an equidigital number, since it uses as much as digits as its factorization.

12773897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7158.

The product of its digits is 148176, while the sum is 44.

The square root of 12773897 is about 3574.0588971084. The cubic root of 12773897 is about 233.7622991041.

The spelling of 12773897 in words is "twelve million, seven hundred seventy-three thousand, eight hundred ninety-seven".