5644397 has 8 divisors (see below), whose sum is σ = 6206112. Its totient is φ = 5090800.

The previous prime is 5644369. The next prime is 5644399. The reversal of 5644397 is 7934465.

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

It is not a de Polignac number, because 5644397 - 2¹⁰ = 5643373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5644397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5644399) 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, 518 + ... + 3399.

It is an arithmetic number, because the mean of its divisors is an integer number (775764).

Almost surely, 2^5644397 is an apocalyptic number.

It is an amenable number.

5644397 is a deficient number, since it is larger than the sum of its proper divisors (561715).

5644397 is a wasteful number, since it uses less digits than its factorization.

5644397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4059.

The product of its digits is 90720, while the sum is 38.

The square root of 5644397 is about 2375.7939725490. The cubic root of 5644397 is about 178.0488545780.

The spelling of 5644397 in words is "five million, six hundred forty-four thousand, three hundred ninety-seven".