12396851 has 4 divisors (see below), whose sum is σ = 12494592. Its totient is φ = 12299112.

The previous prime is 12396821. The next prime is 12396863. The reversal of 12396851 is 15869321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15869321 = 13 ⋅1220717.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12396851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12396821) 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, 48680 + ... + 48933.

It is an arithmetic number, because the mean of its divisors is an integer number (3123648).

Almost surely, 2^12396851 is an apocalyptic number.

12396851 is a deficient number, since it is larger than the sum of its proper divisors (97741).

12396851 is an equidigital number, since it uses as much as digits as its factorization.

12396851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97740.

The product of its digits is 12960, while the sum is 35.

The square root of 12396851 is about 3520.9162159870. The cubic root of 12396851 is about 231.4393106730.

The spelling of 12396851 in words is "twelve million, three hundred ninety-six thousand, eight hundred fifty-one".