5678644 has 12 divisors (see below), whose sum is σ = 10460800. Its totient is φ = 2689848.

The previous prime is 5678641. The next prime is 5678669. The reversal of 5678644 is 4468765.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 5678597 and 5678606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5678641) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 37284 + ... + 37435.

Almost surely, 2^5678644 is an apocalyptic number.

It is an amenable number.

5678644 is a deficient number, since it is larger than the sum of its proper divisors (4782156).

5678644 is a wasteful number, since it uses less digits than its factorization.

5678644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74742 (or 74740 counting only the distinct ones).

The product of its digits is 161280, while the sum is 40.

The square root of 5678644 is about 2382.9905581013. The cubic root of 5678644 is about 178.4082285546.

The spelling of 5678644 in words is "five million, six hundred seventy-eight thousand, six hundred forty-four".