3994803 has 6 divisors (see below), whose sum is σ = 5770284. Its totient is φ = 2663196.

The previous prime is 3994799. The next prime is 3994817. The reversal of 3994803 is 3084993.

It is not a de Polignac number, because 3994803 - 2² = 3994799 is a prime.

It is an Ulam number.

3994803 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3994843) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 221925 + ... + 221942.

It is an arithmetic number, because the mean of its divisors is an integer number (961714).

Almost surely, 2^3994803 is an apocalyptic number.

3994803 is a deficient number, since it is larger than the sum of its proper divisors (1775481).

3994803 is a wasteful number, since it uses less digits than its factorization.

3994803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443873 (or 443870 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 3994803 is about 1998.7003277130. The cubic root of 3994803 is about 158.6713277079.

The spelling of 3994803 in words is "three million, nine hundred ninety-four thousand, eight hundred three".