806782 has 4 divisors (see below), whose sum is σ = 1210176. Its totient is φ = 403390.

The previous prime is 806761. The next prime is 806783. The reversal of 806782 is 287608.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201694 + ... + 201697.

It is an arithmetic number, because the mean of its divisors is an integer number (302544).

2⁸⁰⁶⁷⁸² is an apocalyptic number.

806782 is a deficient number, since it is larger than the sum of its proper divisors (403394).

806782 is a wasteful number, since it uses less digits than its factorization.

806782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403393.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 806782 is about 898.2104430477. The cubic root of 806782 is about 93.0933659801.

The spelling of 806782 in words is "eight hundred six thousand, seven hundred eighty-two".