806878 has 4 divisors (see below), whose sum is σ = 1210320. Its totient is φ = 403438.

The previous prime is 806857. The next prime is 806893. The reversal of 806878 is 878608.

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

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

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, 201718 + ... + 201721.

It is an arithmetic number, because the mean of its divisors is an integer number (302580).

2⁸⁰⁶⁸⁷⁸ is an apocalyptic number.

806878 is a deficient number, since it is larger than the sum of its proper divisors (403442).

806878 is a wasteful number, since it uses less digits than its factorization.

806878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403441.

The product of its (nonzero) digits is 21504, while the sum is 37.

The square root of 806878 is about 898.2638810506. The cubic root of 806878 is about 93.0970582657.

The spelling of 806878 in words is "eight hundred six thousand, eight hundred seventy-eight".