5639617 has 2 divisors, whose sum is σ = 5639618. Its totient is φ = 5639616.

The previous prime is 5639611. The next prime is 5639693. The reversal of 5639617 is 7169365.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4177936 + 1461681 = 2044^2 + 1209^2 .

It is a cyclic number.

It is not a de Polignac number, because 5639617 - 2³ = 5639609 is a prime.

It is a Chen prime.

5639617 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (5639611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2819808 + 2819809.

It is an arithmetic number, because the mean of its divisors is an integer number (2819809).

Almost surely, 2^5639617 is an apocalyptic number.

It is an amenable number.

5639617 is a deficient number, since it is larger than the sum of its proper divisors (1).

5639617 is an equidigital number, since it uses as much as digits as its factorization.

5639617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34020, while the sum is 37.

The square root of 5639617 is about 2374.7877799921. The cubic root of 5639617 is about 177.9985797134.

The spelling of 5639617 in words is "five million, six hundred thirty-nine thousand, six hundred seventeen".