538998 has 8 divisors (see below), whose sum is σ = 1078008. Its totient is φ = 179664.

The previous prime is 538987. The next prime is 539003. The reversal of 538998 is 899835.

538998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

538998 is an admirable number.

It is a d-powerful number, because it can be written as 5⁴ + 3⁵ + 9⁴ + 8² + 9⁶ + 8² .

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44911 + ... + 44922.

It is an arithmetic number, because the mean of its divisors is an integer number (134751).

2⁵³⁸⁹⁹⁸ is an apocalyptic number.

538998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

538998 is a wasteful number, since it uses less digits than its factorization.

538998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89838.

The product of its digits is 77760, while the sum is 42.

The square root of 538998 is about 734.1648316284. The cubic root of 538998 is about 81.3821297856.

The spelling of 538998 in words is "five hundred thirty-eight thousand, nine hundred ninety-eight".