6864420 has 24 divisors (see below), whose sum is σ = 19220544. Its totient is φ = 1830496.

The previous prime is 6864383. The next prime is 6864427. The reversal of 6864420 is 244686.

6864420 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (6864427) 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 7 ways as a sum of consecutive naturals, for example, 57144 + ... + 57263.

It is an arithmetic number, because the mean of its divisors is an integer number (800856).

Almost surely, 2^6864420 is an apocalyptic number.

6864420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6864420 is an abundant number, since it is smaller than the sum of its proper divisors (12356124).

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

6864420 is a wasteful number, since it uses less digits than its factorization.

6864420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114419 (or 114417 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 6864420 is about 2620.0038167911. The cubic root of 6864420 is about 190.0500329916.

The spelling of 6864420 in words is "six million, eight hundred sixty-four thousand, four hundred twenty".