12812806 has 8 divisors (see below), whose sum is σ = 19534464. Its totient is φ = 6301320.

The previous prime is 12812801. The next prime is 12812819. The reversal of 12812806 is 60821821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12812801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52390 + ... + 52633.

It is an arithmetic number, because the mean of its divisors is an integer number (2441808).

Almost surely, 2^12812806 is an apocalyptic number.

12812806 is a deficient number, since it is larger than the sum of its proper divisors (6721658).

12812806 is a wasteful number, since it uses less digits than its factorization.

12812806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105086.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 12812806 is about 3579.4980094980. The cubic root of 12812806 is about 233.9994034124. Note that the first 3 decimals are identical.

The spelling of 12812806 in words is "twelve million, eight hundred twelve thousand, eight hundred six".