6895987 has 8 divisors (see below), whose sum is σ = 7970400. Its totient is φ = 5843904.

The previous prime is 6895969. The next prime is 6895991. The reversal of 6895987 is 7895986.

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 6895987 - 2¹⁹ = 6371699 is a prime.

It is a Duffinian number.

6895987 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6895907) 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, 4912 + ... + 6157.

It is an arithmetic number, because the mean of its divisors is an integer number (996300).

Almost surely, 2^6895987 is an apocalyptic number.

6895987 is a deficient number, since it is larger than the sum of its proper divisors (1074413).

6895987 is a wasteful number, since it uses less digits than its factorization.

6895987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11165.

The product of its digits is 1088640, while the sum is 52.

The square root of 6895987 is about 2626.0211347207. The cubic root of 6895987 is about 190.3409114923.

Subtracting 6895987 from its reverse (7895986), we obtain a palindrome (999999).

The spelling of 6895987 in words is "six million, eight hundred ninety-five thousand, nine hundred eighty-seven".