5644319 has 2 divisors, whose sum is σ = 5644320. Its totient is φ = 5644318.

The previous prime is 5644283. The next prime is 5644321. The reversal of 5644319 is 9134465.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5644319 is a prime.

It is a super-2 number, since 2×5644319² = 63716673947522, which contains 22 as substring.

Together with 5644321, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5644369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2822159 + 2822160.

It is an arithmetic number, because the mean of its divisors is an integer number (2822160).

Almost surely, 2^5644319 is an apocalyptic number.

5644319 is a deficient number, since it is larger than the sum of its proper divisors (1).

5644319 is an equidigital number, since it uses as much as digits as its factorization.

5644319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 32.

The square root of 5644319 is about 2375.7775569274. Note that the first 3 decimals coincide. The cubic root of 5644319 is about 178.0480344210.

The spelling of 5644319 in words is "five million, six hundred forty-four thousand, three hundred nineteen".