6864667 has 4 divisors (see below), whose sum is σ = 6932736. Its totient is φ = 6796600.

The previous prime is 6864661. The next prime is 6864691. The reversal of 6864667 is 7664686.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7664686 = 2 ⋅3832343.

It is a cyclic number.

It is not a de Polignac number, because 6864667 - 2¹⁵ = 6831899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6864661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33883 + ... + 34084.

It is an arithmetic number, because the mean of its divisors is an integer number (1733184).

Almost surely, 2^6864667 is an apocalyptic number.

6864667 is a deficient number, since it is larger than the sum of its proper divisors (68069).

6864667 is a wasteful number, since it uses less digits than its factorization.

6864667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68068.

The product of its digits is 290304, while the sum is 43.

The square root of 6864667 is about 2620.0509537030. The cubic root of 6864667 is about 190.0523124654.

The spelling of 6864667 in words is "six million, eight hundred sixty-four thousand, six hundred sixty-seven".