5644745 has 4 divisors (see below), whose sum is σ = 6773700. Its totient is φ = 4515792.

The previous prime is 5644741. The next prime is 5644777. The reversal of 5644745 is 5474465.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1692601 + 3952144 = 1301^2 + 1988^2 .

It is a cyclic number.

It is not a de Polignac number, because 5644745 - 2² = 5644741 is a prime.

It is a super-2 number, since 2×5644745² = 63726292230050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5644741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 564470 + ... + 564479.

It is an arithmetic number, because the mean of its divisors is an integer number (1693425).

Almost surely, 2^5644745 is an apocalyptic number.

It is an amenable number.

5644745 is a deficient number, since it is larger than the sum of its proper divisors (1128955).

5644745 is a wasteful number, since it uses less digits than its factorization.

5644745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128954.

The product of its digits is 67200, while the sum is 35.

The square root of 5644745 is about 2375.8672100940. The cubic root of 5644745 is about 178.0525136478.

The spelling of 5644745 in words is "five million, six hundred forty-four thousand, seven hundred forty-five".