6863140 has 24 divisors (see below), whose sum is σ = 14910840. Its totient is φ = 2650368.

The previous prime is 6863137. The next prime is 6863141. The reversal of 6863140 is 413686.

It can be written as a sum of positive squares in 4 ways, for example, as 2232036 + 4631104 = 1494^2 + 2152^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6863099 and 6863108.

It is not an unprimeable number, because it can be changed into a prime (6863141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5337 + ... + 6496.

It is an arithmetic number, because the mean of its divisors is an integer number (621285).

Almost surely, 2^6863140 is an apocalyptic number.

It is an amenable number.

6863140 is an abundant number, since it is smaller than the sum of its proper divisors (8047700).

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

6863140 is a wasteful number, since it uses less digits than its factorization.

6863140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11871 (or 11869 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 6863140 is about 2619.7595309494. The cubic root of 6863140 is about 190.0382194583.

The spelling of 6863140 in words is "six million, eight hundred sixty-three thousand, one hundred forty".