12857796 has 108 divisors (see below), whose sum is σ = 39026988. Its totient is φ = 3556224.

The previous prime is 12857791. The next prime is 12857827. The reversal of 12857796 is 69775821.

It can be written as a sum of positive squares in 2 ways, for example, as 12152196 + 705600 = 3486^2 + 840^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12857791) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 65170 + ... + 65366.

It is an arithmetic number, because the mean of its divisors is an integer number (361361).

Almost surely, 2^12857796 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12857796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19513494).

12857796 is an abundant number, since it is smaller than the sum of its proper divisors (26169192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12857796 is a wasteful number, since it uses less digits than its factorization.

12857796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258 (or 246 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 12857796 is about 3585.7769032666. The cubic root of 12857796 is about 234.2729665736.

The spelling of 12857796 in words is "twelve million, eight hundred fifty-seven thousand, seven hundred ninety-six".