12946394 has 4 divisors (see below), whose sum is σ = 19419594. Its totient is φ = 6473196.

The previous prime is 12946393. The next prime is 12946421. The reversal of 12946394 is 49364921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49364921 = 61 ⋅809261.

It can be written as a sum of positive squares in only one way, i.e., 12709225 + 237169 = 3565^2 + 487^2 .

It is not an unprimeable number, because it can be changed into a prime (12946393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3236597 + ... + 3236600.

Almost surely, 2^12946394 is an apocalyptic number.

12946394 is a deficient number, since it is larger than the sum of its proper divisors (6473200).

12946394 is an equidigital number, since it uses as much as digits as its factorization.

12946394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6473199.

The product of its digits is 46656, while the sum is 38.

The square root of 12946394 is about 3598.1097815381. The cubic root of 12946394 is about 234.8098295500.

The spelling of 12946394 in words is "twelve million, nine hundred forty-six thousand, three hundred ninety-four".