5646866 has 16 divisors (see below), whose sum is σ = 8778456. Its totient is φ = 2722176.

The previous prime is 5646859. The next prime is 5646869. The reversal of 5646866 is 6686465.

It can be written as a sum of positive squares in 4 ways, for example, as 4932841 + 714025 = 2221^2 + 845^2 .

It is not an unprimeable number, because it can be changed into a prime (5646869) 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, 9860 + ... + 10416.

Almost surely, 2^5646866 is an apocalyptic number.

5646866 is a deficient number, since it is larger than the sum of its proper divisors (3131590).

5646866 is a wasteful number, since it uses less digits than its factorization.

5646866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733.

The product of its digits is 207360, while the sum is 41.

The square root of 5646866 is about 2376.3135315021. The cubic root of 5646866 is about 178.0748117966.

The spelling of 5646866 in words is "five million, six hundred forty-six thousand, eight hundred sixty-six".