6845564 has 12 divisors (see below), whose sum is σ = 13068888. Its totient is φ = 3111600.

The previous prime is 6845563. The next prime is 6845609. The reversal of 6845564 is 4655486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6845561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77747 + ... + 77834.

It is an arithmetic number, because the mean of its divisors is an integer number (1089074).

Almost surely, 2^6845564 is an apocalyptic number.

It is an amenable number.

6845564 is a deficient number, since it is larger than the sum of its proper divisors (6223324).

6845564 is a wasteful number, since it uses less digits than its factorization.

6845564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155596 (or 155594 counting only the distinct ones).

The product of its digits is 115200, while the sum is 38.

The square root of 6845564 is about 2616.4028741767. The cubic root of 6845564 is about 189.8758561149.

The spelling of 6845564 in words is "six million, eight hundred forty-five thousand, five hundred sixty-four".