5646218 has 4 divisors (see below), whose sum is σ = 8469330. Its totient is φ = 2823108.

The previous prime is 5646131. The next prime is 5646229. The reversal of 5646218 is 8126465.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5368489 + 277729 = 2317^2 + 527^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1411553 + ... + 1411556.

Almost surely, 2^5646218 is an apocalyptic number.

5646218 is a deficient number, since it is larger than the sum of its proper divisors (2823112).

5646218 is a wasteful number, since it uses less digits than its factorization.

5646218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2823111.

The product of its digits is 11520, while the sum is 32.

The square root of 5646218 is about 2376.1771819458. The cubic root of 5646218 is about 178.0679999419.

The spelling of 5646218 in words is "five million, six hundred forty-six thousand, two hundred eighteen".