6549864 has 16 divisors (see below), whose sum is σ = 16374720. Its totient is φ = 2183280.

The previous prime is 6549859. The next prime is 6549877. The reversal of 6549864 is 4689456.

6549864 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136432 + ... + 136479.

It is an arithmetic number, because the mean of its divisors is an integer number (1023420).

Almost surely, 2^6549864 is an apocalyptic number.

It is an amenable number.

6549864 is an abundant number, since it is smaller than the sum of its proper divisors (9824856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6549864 is a wasteful number, since it uses less digits than its factorization.

6549864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272920 (or 272916 counting only the distinct ones).

The product of its digits is 207360, while the sum is 42.

The square root of 6549864 is about 2559.2702084774. The cubic root of 6549864 is about 187.1015681663.

The spelling of 6549864 in words is "six million, five hundred forty-nine thousand, eight hundred sixty-four".