6828987 has 8 divisors (see below), whose sum is σ = 9933120. Its totient is φ = 4138760.

The previous prime is 6828973. The next prime is 6828989. The reversal of 6828987 is 7898286.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6828987 - 2⁴ = 6828971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6828989) 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 7 ways as a sum of consecutive naturals, for example, 103437 + ... + 103502.

It is an arithmetic number, because the mean of its divisors is an integer number (1241640).

Almost surely, 2^6828987 is an apocalyptic number.

6828987 is a deficient number, since it is larger than the sum of its proper divisors (3104133).

6828987 is a wasteful number, since it uses less digits than its factorization.

6828987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206953.

The product of its digits is 387072, while the sum is 48.

The square root of 6828987 is about 2613.2330550489. The cubic root of 6828987 is about 189.7224664562.

It can be divided in two parts, 682 and 8987, that added together give a palindrome (9669).

The spelling of 6828987 in words is "six million, eight hundred twenty-eight thousand, nine hundred eighty-seven".