538839001 has 2 divisors, whose sum is σ = 538839002. Its totient is φ = 538839000.

The previous prime is 538838999. The next prime is 538839079. The reversal of 538839001 is 100938835.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 526243600 + 12595401 = 22940^2 + 3549^2 .

It is a cyclic number.

It is not a de Polignac number, because 538839001 - 2¹ = 538838999 is a prime.

Together with 538838999, 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 (538834001) 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, 269419500 + 269419501.

It is an arithmetic number, because the mean of its divisors is an integer number (269419501).

Almost surely, 2^538839001 is an apocalyptic number.

It is an amenable number.

538839001 is a deficient number, since it is larger than the sum of its proper divisors (1).

538839001 is an equidigital number, since it uses as much as digits as its factorization.

538839001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 538839001 is about 23212.9059145985. The cubic root of 538839001 is about 813.7412669475.

The spelling of 538839001 in words is "five hundred thirty-eight million, eight hundred thirty-nine thousand, one".