538987 has 2 divisors, whose sum is σ = 538988. Its totient is φ = 538986.

The previous prime is 538943. The next prime is 539003. The reversal of 538987 is 789835.

538987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 538987 - 2¹⁹ = 14699 is a prime.

538987 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (538927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269493 + 269494.

It is an arithmetic number, because the mean of its divisors is an integer number (269494).

2⁵³⁸⁹⁸⁷ is an apocalyptic number.

538987 is a deficient number, since it is larger than the sum of its proper divisors (1).

538987 is an equidigital number, since it uses as much as digits as its factorization.

538987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 40.

The square root of 538987 is about 734.1573400845. The cubic root of 538987 is about 81.3815761598.

It can be divided in two parts, 5389 and 87, that added together give a square (5476 = 74²).

The spelling of 538987 in words is "five hundred thirty-eight thousand, nine hundred eighty-seven".