8206864 has 10 divisors (see below), whose sum is σ = 15900830. Its totient is φ = 4103424.

The previous prime is 8206853. The next prime is 8206871. The reversal of 8206864 is 4686028.

It can be written as a sum of positive squares in only one way, i.e., 6718464 + 1488400 = 2592^2 + 1220^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 256449 + ... + 256480.

It is an arithmetic number, because the mean of its divisors is an integer number (1590083).

Almost surely, 2^8206864 is an apocalyptic number.

It is an amenable number.

8206864 is a deficient number, since it is larger than the sum of its proper divisors (7693966).

8206864 is a wasteful number, since it uses less digits than its factorization.

8206864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512937 (or 512931 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 8206864 is about 2864.7624683383. The cubic root of 8206864 is about 201.7092179258.

The spelling of 8206864 in words is "eight million, two hundred six thousand, eight hundred sixty-four".