538198317 has 8 divisors (see below), whose sum is σ = 797330880. Its totient is φ = 358798860.

The previous prime is 538198307. The next prime is 538198361. The reversal of 538198317 is 713891835.

It is not a de Polignac number, because 538198317 - 2¹⁴ = 538181933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538198307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9966609 + ... + 9966662.

It is an arithmetic number, because the mean of its divisors is an integer number (99666360).

Almost surely, 2^538198317 is an apocalyptic number.

It is an amenable number.

538198317 is a deficient number, since it is larger than the sum of its proper divisors (259132563).

538198317 is a wasteful number, since it uses less digits than its factorization.

538198317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19933280 (or 19933274 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 538198317 is about 23199.1016420895. The cubic root of 538198317 is about 813.4186240209.

The spelling of 538198317 in words is "five hundred thirty-eight million, one hundred ninety-eight thousand, three hundred seventeen".