5644867 has 8 divisors (see below), whose sum is σ = 6237216. Its totient is φ = 5081472.

The previous prime is 5644861. The next prime is 5644889. The reversal of 5644867 is 7684465.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5644867 is a prime.

It is a Duffinian number.

5644867 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5644861) 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, 6828 + ... + 7609.

It is an arithmetic number, because the mean of its divisors is an integer number (779652).

Almost surely, 2^5644867 is an apocalyptic number.

5644867 is a deficient number, since it is larger than the sum of its proper divisors (592349).

5644867 is a wasteful number, since it uses less digits than its factorization.

5644867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14477.

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

The square root of 5644867 is about 2375.8928847909. The cubic root of 5644867 is about 178.0537963896.

The spelling of 5644867 in words is "five million, six hundred forty-four thousand, eight hundred sixty-seven".