803864 has 8 divisors (see below), whose sum is σ = 1507260. Its totient is φ = 401928.

The previous prime is 803857. The next prime is 803867. The reversal of 803864 is 468308.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (803867) by changing a digit.

803864 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50234 + ... + 50249.

2⁸⁰³⁸⁶⁴ is an apocalyptic number.

It is an amenable number.

803864 is a deficient number, since it is larger than the sum of its proper divisors (703396).

803864 is a wasteful number, since it uses less digits than its factorization.

803864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100489 (or 100485 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 803864 is about 896.5846306958. The cubic root of 803864 is about 92.9809958471.

The spelling of 803864 in words is "eight hundred three thousand, eight hundred sixty-four".