12667994 has 8 divisors (see below), whose sum is σ = 19128288. Its totient is φ = 6291900.

The previous prime is 12667987. The next prime is 12667997. The reversal of 12667994 is 49976621.

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

It is not an unprimeable number, because it can be changed into a prime (12667997) 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, 20672 + ... + 21275.

It is an arithmetic number, because the mean of its divisors is an integer number (2391036).

Almost surely, 2^12667994 is an apocalyptic number.

12667994 is a deficient number, since it is larger than the sum of its proper divisors (6460294).

12667994 is a wasteful number, since it uses less digits than its factorization.

12667994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42100.

The product of its digits is 163296, while the sum is 44.

The square root of 12667994 is about 3559.2125533606. The cubic root of 12667994 is about 233.1144973191.

The spelling of 12667994 in words is "twelve million, six hundred sixty-seven thousand, nine hundred ninety-four".