12896747 has 4 divisors (see below), whose sum is σ = 12932256. Its totient is φ = 12861240.

The previous prime is 12896743. The next prime is 12896749. The reversal of 12896747 is 74769821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74769821 = 7 ⋅10681403.

It is a cyclic number.

It is not a de Polignac number, because 12896747 - 2² = 12896743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12896698 and 12896707.

It is not an unprimeable number, because it can be changed into a prime (12896743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17204 + ... + 17937.

It is an arithmetic number, because the mean of its divisors is an integer number (3233064).

Almost surely, 2^12896747 is an apocalyptic number.

12896747 is a deficient number, since it is larger than the sum of its proper divisors (35509).

12896747 is an equidigital number, since it uses as much as digits as its factorization.

12896747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35508.

The product of its digits is 169344, while the sum is 44.

The square root of 12896747 is about 3591.2041156136. The cubic root of 12896747 is about 234.5092944611.

The spelling of 12896747 in words is "twelve million, eight hundred ninety-six thousand, seven hundred forty-seven".