538967999 has 4 divisors (see below), whose sum is σ = 539028336. Its totient is φ = 538907664.

The previous prime is 538967981. The next prime is 538968007. The reversal of 538967999 is 999769835.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 538967999 - 2²⁴ = 522190783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538967909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13814 + ... + 35619.

It is an arithmetic number, because the mean of its divisors is an integer number (134757084).

Almost surely, 2^538967999 is an apocalyptic number.

538967999 is a deficient number, since it is larger than the sum of its proper divisors (60337).

538967999 is a wasteful number, since it uses less digits than its factorization.

538967999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60336.

The product of its digits is 33067440, while the sum is 65.

The square root of 538967999 is about 23215.6843319339. The cubic root of 538967999 is about 813.8061982907.

The spelling of 538967999 in words is "five hundred thirty-eight million, nine hundred sixty-seven thousand, nine hundred ninety-nine".