987587 has 2 divisors, whose sum is σ = 987588. Its totient is φ = 987586.

The previous prime is 987559. The next prime is 987593. The reversal of 987587 is 785789.

987587 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 987587 - 2⁶ = 987523 is a prime.

It is a Chen prime.

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 987587.

It is not a weakly prime, because it can be changed into another prime (980587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493793 + 493794.

It is an arithmetic number, because the mean of its divisors is an integer number (493794).

2⁹⁸⁷⁵⁸⁷ is an apocalyptic number.

987587 is a deficient number, since it is larger than the sum of its proper divisors (1).

987587 is an equidigital number, since it uses as much as digits as its factorization.

987587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 44.

The square root of 987587 is about 993.7741192042. The cubic root of 987587 is about 99.5845093999.

The spelling of 987587 in words is "nine hundred eighty-seven thousand, five hundred eighty-seven".