12816994 has 8 divisors (see below), whose sum is σ = 19634688. Its totient is φ = 6272100.

The previous prime is 12816989. The next prime is 12817027. The reversal of 12816994 is 49961821.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68082 + ... + 68269.

It is an arithmetic number, because the mean of its divisors is an integer number (2454336).

Almost surely, 2^12816994 is an apocalyptic number.

12816994 is a deficient number, since it is larger than the sum of its proper divisors (6817694).

12816994 is a wasteful number, since it uses less digits than its factorization.

12816994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136400.

The product of its digits is 31104, while the sum is 40.

The square root of 12816994 is about 3580.0829599326. The cubic root of 12816994 is about 234.0248956881.

The spelling of 12816994 in words is "twelve million, eight hundred sixteen thousand, nine hundred ninety-four".