5644947 has 24 divisors (see below), whose sum is σ = 9554112. Its totient is φ = 2931600.

The previous prime is 5644939. The next prime is 5644963. The reversal of 5644947 is 7494465.

It is a happy number.

It is not a de Polignac number, because 5644947 - 2³ = 5644939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5644907) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129 + ... + 3362.

It is an arithmetic number, because the mean of its divisors is an integer number (398088).

Almost surely, 2^5644947 is an apocalyptic number.

5644947 is a deficient number, since it is larger than the sum of its proper divisors (3909165).

5644947 is a wasteful number, since it uses less digits than its factorization.

5644947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3519 (or 3512 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 5644947 is about 2375.9097205071. The cubic root of 5644947 is about 178.0546375217.

The spelling of 5644947 in words is "five million, six hundred forty-four thousand, nine hundred forty-seven".