12803994 has 60 divisors (see below), whose sum is σ = 33395274. Its totient is φ = 3656016.

The previous prime is 12803983. The next prime is 12804007. The reversal of 12803994 is 49930821.

It can be written as a sum of positive squares in only one way, i.e., 10323369 + 2480625 = 3213^2 + 1575^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 7132 + ... + 8744.

Almost surely, 2^12803994 is an apocalyptic number.

12803994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12803994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16697637).

12803994 is an abundant number, since it is smaller than the sum of its proper divisors (20591280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12803994 is a wasteful number, since it uses less digits than its factorization.

12803994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641 (or 1625 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 12803994 is about 3578.2668989331. The cubic root of 12803994 is about 233.9457467911.

The spelling of 12803994 in words is "twelve million, eight hundred three thousand, nine hundred ninety-four".