6864078 has 16 divisors (see below), whose sum is σ = 14784336. Its totient is φ = 2112000.

The previous prime is 6864059. The next prime is 6864079. The reversal of 6864078 is 8704686.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6864079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43923 + ... + 44078.

It is an arithmetic number, because the mean of its divisors is an integer number (924021).

Almost surely, 2^6864078 is an apocalyptic number.

6864078 is an abundant number, since it is smaller than the sum of its proper divisors (7920258).

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

6864078 is a wasteful number, since it uses less digits than its factorization.

6864078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88019.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 6864078 is about 2619.9385488977. The cubic root of 6864078 is about 190.0468767070.

It can be divided in two parts, 68 and 64078, that added together give a palindrome (64146).

The spelling of 6864078 in words is "six million, eight hundred sixty-four thousand, seventy-eight".