806378 has 16 divisors (see below), whose sum is σ = 1317384. Its totient is φ = 368640.

The previous prime is 806371. The next prime is 806381. The reversal of 806378 is 873608.

It can be written as a sum of positive squares in 4 ways, for example, as 769129 + 37249 = 877^2 + 193^2 .

It is not an unprimeable number, because it can be changed into a prime (806371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 938 + ... + 1578.

2⁸⁰⁶³⁷⁸ is an apocalyptic number.

806378 is a deficient number, since it is larger than the sum of its proper divisors (511006).

806378 is a wasteful number, since it uses less digits than its factorization.

806378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 806378 is about 897.9855232686. The cubic root of 806378 is about 93.0778244008.

The spelling of 806378 in words is "eight hundred six thousand, three hundred seventy-eight".