12894397 has 4 divisors (see below), whose sum is σ = 12905116. Its totient is φ = 12883680.

The previous prime is 12894383. The next prime is 12894433. The reversal of 12894397 is 79349821.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 9603801 + 3290596 = 3099^2 + 1814^2 .

It is a cyclic number.

It is not a de Polignac number, because 12894397 - 2⁷ = 12894269 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 (12894197) 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, 3288 + ... + 6049.

It is an arithmetic number, because the mean of its divisors is an integer number (3226279).

Almost surely, 2^12894397 is an apocalyptic number.

It is an amenable number.

12894397 is a deficient number, since it is larger than the sum of its proper divisors (10719).

12894397 is an equidigital number, since it uses as much as digits as its factorization.

12894397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10718.

The product of its digits is 108864, while the sum is 43.

The square root of 12894397 is about 3590.8769123990. The cubic root of 12894397 is about 234.4950497756.

The spelling of 12894397 in words is "twelve million, eight hundred ninety-four thousand, three hundred ninety-seven".