538969601 has 2 divisors, whose sum is σ = 538969602. Its totient is φ = 538969600.

The previous prime is 538969579. The next prime is 538969609. The reversal of 538969601 is 106969835.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 299463025 + 239506576 = 17305^2 + 15476^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-538969601 is a prime.

It is not a weakly prime, because it can be changed into another prime (538969609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269484800 + 269484801.

It is an arithmetic number, because the mean of its divisors is an integer number (269484801).

Almost surely, 2^538969601 is an apocalyptic number.

It is an amenable number.

538969601 is a deficient number, since it is larger than the sum of its proper divisors (1).

538969601 is an equidigital number, since it uses as much as digits as its factorization.

538969601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 538969601 is about 23215.7188344449. The cubic root of 538969601 is about 813.8070045948.

The spelling of 538969601 in words is "five hundred thirty-eight million, nine hundred sixty-nine thousand, six hundred one".