803966 has 8 divisors (see below), whose sum is σ = 1269480. Its totient is φ = 380808.

The previous prime is 803963. The next prime is 803977. The reversal of 803966 is 669308.

It is a happy number.

803966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×803966² = 1292722658312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (803963) 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, 10541 + ... + 10616.

It is an arithmetic number, because the mean of its divisors is an integer number (158685).

2⁸⁰³⁹⁶⁶ is an apocalyptic number.

803966 is a deficient number, since it is larger than the sum of its proper divisors (465514).

803966 is a wasteful number, since it uses less digits than its factorization.

803966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21178.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 803966 is about 896.6415114191. The cubic root of 803966 is about 92.9849283781.

The spelling of 803966 in words is "eight hundred three thousand, nine hundred sixty-six".