5609381 has 2 divisors, whose sum is σ = 5609382. Its totient is φ = 5609380.

The previous prime is 5609369. The next prime is 5609399. The reversal of 5609381 is 1839065.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3389281 + 2220100 = 1841^2 + 1490^2 .

It is a cyclic number.

It is not a de Polignac number, because 5609381 - 2¹⁰ = 5608357 is a prime.

It is a super-2 number, since 2×5609381² = 62930310406322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5609321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2804690 + 2804691.

It is an arithmetic number, because the mean of its divisors is an integer number (2804691).

Almost surely, 2^5609381 is an apocalyptic number.

It is an amenable number.

5609381 is a deficient number, since it is larger than the sum of its proper divisors (1).

5609381 is an equidigital number, since it uses as much as digits as its factorization.

5609381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 5609381 is about 2368.4131818583. The cubic root of 5609381 is about 177.6799048803.

The spelling of 5609381 in words is "five million, six hundred nine thousand, three hundred eighty-one".