6664836 has 24 divisors (see below), whose sum is σ = 15601600. Its totient is φ = 2214432.

The previous prime is 6664831. The next prime is 6664843. The reversal of 6664836 is 6384666.

It is a junction number, because it is equal to n+sod(n) for n = 6664794 and 6664803.

It is not an unprimeable number, because it can be changed into a prime (6664831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4065 + ... + 5463.

Almost surely, 2^6664836 is an apocalyptic number.

It is an amenable number.

6664836 is an abundant number, since it is smaller than the sum of its proper divisors (8936764).

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

6664836 is a wasteful number, since it uses less digits than its factorization.

6664836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1803 (or 1801 counting only the distinct ones).

The product of its digits is 124416, while the sum is 39.

The square root of 6664836 is about 2581.6343660557. The cubic root of 6664836 is about 188.1899769662.

The spelling of 6664836 in words is "six million, six hundred sixty-four thousand, eight hundred thirty-six".