803859 has 16 divisors (see below), whose sum is σ = 1240320. Its totient is φ = 453600.

The previous prime is 803857. The next prime is 803867. The reversal of 803859 is 958308.

It is not a de Polignac number, because 803859 - 2¹ = 803857 is a prime.

It is a nialpdrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (803857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1932 + ... + 2310.

It is an arithmetic number, because the mean of its divisors is an integer number (77520).

2⁸⁰³⁸⁵⁹ is an apocalyptic number.

803859 is a deficient number, since it is larger than the sum of its proper divisors (436461).

803859 is a wasteful number, since it uses less digits than its factorization.

803859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 803859 is about 896.5818423323. The cubic root of 803859 is about 92.9808030674.

Subtracting 803859 from its reverse (958308), we obtain a square (154449 = 393²).

The spelling of 803859 in words is "eight hundred three thousand, eight hundred fifty-nine".