6678587 has 4 divisors (see below), whose sum is σ = 6699096. Its totient is φ = 6658080.

The previous prime is 6678577. The next prime is 6678593. The reversal of 6678587 is 7858766.

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 6678587 - 2⁶ = 6678523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6678577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9758 + ... + 10419.

It is an arithmetic number, because the mean of its divisors is an integer number (1674774).

Almost surely, 2^6678587 is an apocalyptic number.

6678587 is a deficient number, since it is larger than the sum of its proper divisors (20509).

6678587 is a wasteful number, since it uses less digits than its factorization.

6678587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20508.

The product of its digits is 564480, while the sum is 47.

The square root of 6678587 is about 2584.2962291502. The cubic root of 6678587 is about 188.3193136160.

The spelling of 6678587 in words is "six million, six hundred seventy-eight thousand, five hundred eighty-seven".