6864777 has 16 divisors (see below), whose sum is σ = 10316160. Its totient is φ = 4510800.

The previous prime is 6864769. The next prime is 6864779. The reversal of 6864777 is 7774686.

It is not a de Polignac number, because 6864777 - 2³ = 6864769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6864779) 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 15 ways as a sum of consecutive naturals, for example, 127 + ... + 3707.

It is an arithmetic number, because the mean of its divisors is an integer number (644760).

Almost surely, 2^6864777 is an apocalyptic number.

It is an amenable number.

6864777 is a deficient number, since it is larger than the sum of its proper divisors (3451383).

6864777 is a wasteful number, since it uses less digits than its factorization.

6864777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3661 (or 3655 counting only the distinct ones).

The product of its digits is 395136, while the sum is 45.

The square root of 6864777 is about 2620.0719455771. The cubic root of 6864777 is about 190.0533275980.

Subtracting 6864777 from its reverse (7774686), we obtain a palindrome (909909).

The spelling of 6864777 in words is "six million, eight hundred sixty-four thousand, seven hundred seventy-seven".