6867920 has 30 divisors (see below), whose sum is σ = 16022598. Its totient is φ = 2737792.

The previous prime is 6867907. The next prime is 6867923. The reversal of 6867920 is 297686.

It can be written as a sum of positive squares in 3 ways, for example, as 4032064 + 2835856 = 2008^2 + 1684^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6867923) 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 5 ways as a sum of consecutive naturals, for example, 23294 + ... + 23586.

Almost surely, 2^6867920 is an apocalyptic number.

It is an amenable number.

6867920 is an abundant number, since it is smaller than the sum of its proper divisors (9154678).

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

6867920 is an equidigital number, since it uses as much as digits as its factorization.

6867920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 6867920 is about 2620.6716696298. The cubic root of 6867920 is about 190.0823281258.

The spelling of 6867920 in words is "six million, eight hundred sixty-seven thousand, nine hundred twenty".