6806564 has 6 divisors (see below), whose sum is σ = 11911494. Its totient is φ = 3403280.

The previous prime is 6806543. The next prime is 6806573. The reversal of 6806564 is 4656086.

It can be written as a sum of positive squares in only one way, i.e., 6801664 + 4900 = 2608^2 + 70^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 850817 + ... + 850824.

It is an arithmetic number, because the mean of its divisors is an integer number (1985249).

Almost surely, 2^6806564 is an apocalyptic number.

It is an amenable number.

6806564 is a deficient number, since it is larger than the sum of its proper divisors (5104930).

6806564 is a wasteful number, since it uses less digits than its factorization.

6806564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701645 (or 1701643 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 6806564 is about 2608.9392480470. The cubic root of 6806564 is about 189.5145873302.

It can be divided in two parts, 6 and 806564, that multiplied together give a palindrome (4839384).

The spelling of 6806564 in words is "six million, eight hundred six thousand, five hundred sixty-four".