6986587 has 2 divisors, whose sum is σ = 6986588. Its totient is φ = 6986586.

The previous prime is 6986569. The next prime is 6986591. The reversal of 6986587 is 7856896.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6986587 - 2¹⁵ = 6953819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6986587.

It is not a weakly prime, because it can be changed into another prime (6986537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3493293 + 3493294.

It is an arithmetic number, because the mean of its divisors is an integer number (3493294).

Almost surely, 2^6986587 is an apocalyptic number.

6986587 is a deficient number, since it is larger than the sum of its proper divisors (1).

6986587 is an equidigital number, since it uses as much as digits as its factorization.

6986587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 49.

The square root of 6986587 is about 2643.2152768929. The cubic root of 6986587 is about 191.1708585075.

The spelling of 6986587 in words is "six million, nine hundred eighty-six thousand, five hundred eighty-seven".