678586487 has 2 divisors, whose sum is σ = 678586488. Its totient is φ = 678586486.

The previous prime is 678586481. The next prime is 678586511. The reversal of 678586487 is 784685876.

678586487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 678586487 - 2⁸ = 678586231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (678586481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339293243 + 339293244.

It is an arithmetic number, because the mean of its divisors is an integer number (339293244).

Almost surely, 2^678586487 is an apocalyptic number.

678586487 is a deficient number, since it is larger than the sum of its proper divisors (1).

678586487 is an equidigital number, since it uses as much as digits as its factorization.

678586487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18063360, while the sum is 59.

The square root of 678586487 is about 26049.6926469392. The cubic root of 678586487 is about 878.7562003897.

The spelling of 678586487 in words is "six hundred seventy-eight million, five hundred eighty-six thousand, four hundred eighty-seven".