538245997 has 2 divisors, whose sum is σ = 538245998. Its totient is φ = 538245996.

The previous prime is 538245989. The next prime is 538246013. The reversal of 538245997 is 799542835.

538245997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 347225956 + 191020041 = 18634^2 + 13821^2 .

It is a cyclic number.

It is not a de Polignac number, because 538245997 - 2³ = 538245989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (538645997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269122998 + 269122999.

It is an arithmetic number, because the mean of its divisors is an integer number (269122999).

Almost surely, 2^538245997 is an apocalyptic number.

It is an amenable number.

538245997 is a deficient number, since it is larger than the sum of its proper divisors (1).

538245997 is an equidigital number, since it uses as much as digits as its factorization.

538245997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2721600, while the sum is 52.

The square root of 538245997 is about 23200.1292453296. The cubic root of 538245997 is about 813.4426440730.

The spelling of 538245997 in words is "five hundred thirty-eight million, two hundred forty-five thousand, nine hundred ninety-seven".