6864442 has 24 divisors (see below), whose sum is σ = 11647584. Its totient is φ = 3027024.

The previous prime is 6864437. The next prime is 6864443. The reversal of 6864442 is 2444686.

It is a happy number.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a zygodrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 6864398 and 6864407.

It is not an unprimeable number, because it can be changed into a prime (6864443) 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 11 ways as a sum of consecutive naturals, for example, 7333 + ... + 8215.

It is an arithmetic number, because the mean of its divisors is an integer number (485316).

Almost surely, 2^6864442 is an apocalyptic number.

6864442 is a deficient number, since it is larger than the sum of its proper divisors (4783142).

6864442 is a wasteful number, since it uses less digits than its factorization.

6864442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934 (or 921 counting only the distinct ones).

The product of its digits is 36864, while the sum is 34.

The square root of 6864442 is about 2620.0080152549. The cubic root of 6864442 is about 190.0502360239.

It can be divided in two parts, 68644 and 42, that added together give a palindrome (68686).

The spelling of 6864442 in words is "six million, eight hundred sixty-four thousand, four hundred forty-two".