5639397329 has 2 divisors, whose sum is σ = 5639397330. Its totient is φ = 5639397328.

The previous prime is 5639397299. The next prime is 5639397331. The reversal of 5639397329 is 9237939365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5557404304 + 81993025 = 74548^2 + 9055^2 .

It is a cyclic number.

It is not a de Polignac number, because 5639397329 - 2²⁸ = 5370961873 is a prime.

Together with 5639397331, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5639397359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2819698664 + 2819698665.

It is an arithmetic number, because the mean of its divisors is an integer number (2819698665).

Almost surely, 2^5639397329 is an apocalyptic number.

It is an amenable number.

5639397329 is a deficient number, since it is larger than the sum of its proper divisors (1).

5639397329 is an equidigital number, since it uses as much as digits as its factorization.

5639397329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8266860, while the sum is 56.

The square root of 5639397329 is about 75095.9208545977. The cubic root of 5639397329 is about 1779.9626858525.

The spelling of 5639397329 in words is "five billion, six hundred thirty-nine million, three hundred ninety-seven thousand, three hundred twenty-nine".