500065639 has 2 divisors, whose sum is σ = 500065640. Its totient is φ = 500065638.

The previous prime is 500065627. The next prime is 500065649. The reversal of 500065639 is 936560005.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 500065639 - 2⁹ = 500065127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (500065649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250032819 + 250032820.

It is an arithmetic number, because the mean of its divisors is an integer number (250032820).

Almost surely, 2^500065639 is an apocalyptic number.

500065639 is a deficient number, since it is larger than the sum of its proper divisors (1).

500065639 is an equidigital number, since it uses as much as digits as its factorization.

500065639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24300, while the sum is 34.

The square root of 500065639 is about 22362.1474594906. The cubic root of 500065639 is about 793.7352562703.

The spelling of 500065639 in words is "five hundred million, sixty-five thousand, six hundred thirty-nine".