538856039 has 2 divisors, whose sum is σ = 538856040. Its totient is φ = 538856038.

The previous prime is 538855969. The next prime is 538856041. The reversal of 538856039 is 930658835.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-538856039 is a prime.

Together with 538856041, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 538855984 and 538856002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (538856069) 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, 269428019 + 269428020.

It is an arithmetic number, because the mean of its divisors is an integer number (269428020).

Almost surely, 2^538856039 is an apocalyptic number.

538856039 is a deficient number, since it is larger than the sum of its proper divisors (1).

538856039 is an equidigital number, since it uses as much as digits as its factorization.

538856039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 777600, while the sum is 47.

The square root of 538856039 is about 23213.2729058183. The cubic root of 538856039 is about 813.7498436451.

The spelling of 538856039 in words is "five hundred thirty-eight million, eight hundred fifty-six thousand, thirty-nine".