6864771 has 4 divisors (see below), whose sum is σ = 9153032. Its totient is φ = 4576512.

The previous prime is 6864769. The next prime is 6864779. The reversal of 6864771 is 1774686.

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

It is not a de Polignac number, because 6864771 - 2¹ = 6864769 is a prime.

It is a D-number.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 1144126 + ... + 1144131.

It is an arithmetic number, because the mean of its divisors is an integer number (2288258).

Almost surely, 2^6864771 is an apocalyptic number.

6864771 is a deficient number, since it is larger than the sum of its proper divisors (2288261).

6864771 is a wasteful number, since it uses less digits than its factorization.

6864771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2288260.

The product of its digits is 56448, while the sum is 39.

The square root of 6864771 is about 2620.0708005701. The cubic root of 6864771 is about 190.0532722274.

The spelling of 6864771 in words is "six million, eight hundred sixty-four thousand, seven hundred seventy-one".