538859999 has 4 divisors (see below), whose sum is σ = 570557664. Its totient is φ = 507162336.

The previous prime is 538859983. The next prime is 538860013. The reversal of 538859999 is 999958835.

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

It is a cyclic number.

It is not a de Polignac number, because 538859999 - 2⁴ = 538859983 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 (538859599) 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, 15848807 + ... + 15848840.

It is an arithmetic number, because the mean of its divisors is an integer number (142639416).

Almost surely, 2^538859999 is an apocalyptic number.

538859999 is a deficient number, since it is larger than the sum of its proper divisors (31697665).

538859999 is a wasteful number, since it uses less digits than its factorization.

538859999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31697664.

The product of its digits is 31492800, while the sum is 65.

The square root of 538859999 is about 23213.3582016907. The cubic root of 538859999 is about 813.7518370294.

The spelling of 538859999 in words is "five hundred thirty-eight million, eight hundred fifty-nine thousand, nine hundred ninety-nine".