12856346 has 4 divisors (see below), whose sum is σ = 19284522. Its totient is φ = 6428172.

The previous prime is 12856339. The next prime is 12856373. The reversal of 12856346 is 64365821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64365821 = 13 ⋅4951217.

It can be written as a sum of positive squares in only one way, i.e., 11730625 + 1125721 = 3425^2 + 1061^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3214085 + ... + 3214088.

Almost surely, 2^12856346 is an apocalyptic number.

12856346 is a deficient number, since it is larger than the sum of its proper divisors (6428176).

12856346 is an equidigital number, since it uses as much as digits as its factorization.

12856346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6428175.

The product of its digits is 34560, while the sum is 35.

The square root of 12856346 is about 3585.5747098617. The cubic root of 12856346 is about 234.2641597617.

The spelling of 12856346 in words is "twelve million, eight hundred fifty-six thousand, three hundred forty-six".