6861764 has 36 divisors (see below), whose sum is σ = 15048684. Its totient is φ = 2713536.

The previous prime is 6861737. The next prime is 6861769. The reversal of 6861764 is 4671686.

It can be written as a sum of positive squares in 2 ways, for example, as 1844164 + 5017600 = 1358^2 + 2240^2 .

It is not an unprimeable number, because it can be changed into a prime (6861769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1202 + ... + 3894.

It is an arithmetic number, because the mean of its divisors is an integer number (418019).

Almost surely, 2^6861764 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6861764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7524342).

6861764 is an abundant number, since it is smaller than the sum of its proper divisors (8186920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6861764 is a wasteful number, since it uses less digits than its factorization.

6861764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2724 (or 2715 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 6861764 is about 2619.4968982612. The cubic root of 6861764 is about 190.0255182716.

The spelling of 6861764 in words is "six million, eight hundred sixty-one thousand, seven hundred sixty-four".