6887983 has 4 divisors (see below), whose sum is σ = 7110208. Its totient is φ = 6665760.

The previous prime is 6887953. The next prime is 6888019. The reversal of 6887983 is 3897886.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6887983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6887953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111066 + ... + 111127.

It is an arithmetic number, because the mean of its divisors is an integer number (1777552).

Almost surely, 2^6887983 is an apocalyptic number.

6887983 is a deficient number, since it is larger than the sum of its proper divisors (222225).

6887983 is a wasteful number, since it uses less digits than its factorization.

6887983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222224.

The product of its digits is 580608, while the sum is 49.

The square root of 6887983 is about 2624.4967136577. The cubic root of 6887983 is about 190.2672416675.

The spelling of 6887983 in words is "six million, eight hundred eighty-seven thousand, nine hundred eighty-three".