6861777 has 16 divisors (see below), whose sum is σ = 10194240. Its totient is φ = 4076352.

The previous prime is 6861773. The next prime is 6861791. The reversal of 6861777 is 7771686.

6861777 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6861777 - 2² = 6861773 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6861773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1903 + ... + 4164.

It is an arithmetic number, because the mean of its divisors is an integer number (637140).

Almost surely, 2^6861777 is an apocalyptic number.

It is an amenable number.

6861777 is a deficient number, since it is larger than the sum of its proper divisors (3332463).

6861777 is a wasteful number, since it uses less digits than its factorization.

6861777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6112.

The product of its digits is 98784, while the sum is 42.

The square root of 6861777 is about 2619.4993796525. The cubic root of 6861777 is about 190.0256382762.

Subtracting 6861777 from its reverse (7771686), we obtain a palindrome (909909).

The spelling of 6861777 in words is "six million, eight hundred sixty-one thousand, seven hundred seventy-seven".