6871977 has 24 divisors (see below), whose sum is σ = 11943360. Its totient is φ = 3719520.

The previous prime is 6871933. The next prime is 6871979. The reversal of 6871977 is 7791786.

It is a happy number.

It is not a de Polignac number, because 6871977 - 2⁶ = 6871913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6871979) 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 23 ways as a sum of consecutive naturals, for example, 1674 + ... + 4067.

It is an arithmetic number, because the mean of its divisors is an integer number (497640).

Almost surely, 2^6871977 is an apocalyptic number.

It is an amenable number.

6871977 is a deficient number, since it is larger than the sum of its proper divisors (5071383).

6871977 is a wasteful number, since it uses less digits than its factorization.

6871977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5773 (or 5770 counting only the distinct ones).

The product of its digits is 148176, while the sum is 45.

The square root of 6871977 is about 2621.4455935609. The cubic root of 6871977 is about 190.1197490727.

The spelling of 6871977 in words is "six million, eight hundred seventy-one thousand, nine hundred seventy-seven".