538717297 has 4 divisors (see below), whose sum is σ = 546097060. Its totient is φ = 531337536.

The previous prime is 538717271. The next prime is 538717303. The reversal of 538717297 is 792717835.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 459845136 + 78872161 = 21444^2 + 8881^2 .

It is a cyclic number.

It is not a de Polignac number, because 538717297 - 2¹⁵ = 538684529 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 538717297.

It is not an unprimeable number, because it can be changed into a prime (538717237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3689772 + ... + 3689917.

It is an arithmetic number, because the mean of its divisors is an integer number (136524265).

Almost surely, 2^538717297 is an apocalyptic number.

It is an amenable number.

538717297 is a deficient number, since it is larger than the sum of its proper divisors (7379763).

538717297 is an equidigital number, since it uses as much as digits as its factorization.

538717297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7379762.

The product of its digits is 740880, while the sum is 49.

The square root of 538717297 is about 23210.2842938211. The cubic root of 538717297 is about 813.6799975491.

The spelling of 538717297 in words is "five hundred thirty-eight million, seven hundred seventeen thousand, two hundred ninety-seven".