12823906 has 4 divisors (see below), whose sum is σ = 19235862. Its totient is φ = 6411952.

The previous prime is 12823901. The next prime is 12823907. The reversal of 12823906 is 60932821.

12823906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11594025 + 1229881 = 3405^2 + 1109^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (12823901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3205975 + ... + 3205978.

Almost surely, 2^12823906 is an apocalyptic number.

12823906 is a deficient number, since it is larger than the sum of its proper divisors (6411956).

12823906 is an equidigital number, since it uses as much as digits as its factorization.

12823906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6411955.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 12823906 is about 3581.0481705780. The cubic root of 12823906 is about 234.0669567566.

The spelling of 12823906 in words is "twelve million, eight hundred twenty-three thousand, nine hundred six".