12885394 has 4 divisors (see below), whose sum is σ = 19328094. Its totient is φ = 6442696.

The previous prime is 12885349. The next prime is 12885409. The reversal of 12885394 is 49358821.

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., 11992369 + 893025 = 3463^2 + 945^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3221347 + ... + 3221350.

Almost surely, 2^12885394 is an apocalyptic number.

12885394 is a deficient number, since it is larger than the sum of its proper divisors (6442700).

12885394 is an equidigital number, since it uses as much as digits as its factorization.

12885394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6442699.

The product of its digits is 69120, while the sum is 40.

The square root of 12885394 is about 3589.6230999925. The cubic root of 12885394 is about 234.4404614540.

The spelling of 12885394 in words is "twelve million, eight hundred eighty-five thousand, three hundred ninety-four".