538787 has 4 divisors (see below), whose sum is σ = 543840. Its totient is φ = 533736.

The previous prime is 538777. The next prime is 538789. The reversal of 538787 is 787835.

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 538787 - 2⁴ = 538771 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 538787.

It is not an unprimeable number, because it can be changed into a prime (538789) 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, 2363 + ... + 2580.

It is an arithmetic number, because the mean of its divisors is an integer number (135960).

2⁵³⁸⁷⁸⁷ is an apocalyptic number.

538787 is a deficient number, since it is larger than the sum of its proper divisors (5053).

538787 is a wasteful number, since it uses less digits than its factorization.

538787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5052.

The product of its digits is 47040, while the sum is 38.

The square root of 538787 is about 734.0211168625. The cubic root of 538787 is about 81.3715089233.

It can be divided in two parts, 53878 and 7, that multiplied together give a triangular number (377146 = T₈₆₈).

The spelling of 538787 in words is "five hundred thirty-eight thousand, seven hundred eighty-seven".