6864511 has 8 divisors (see below), whose sum is σ = 7212384. Its totient is φ = 6520800.

The previous prime is 6864497. The next prime is 6864521. The reversal of 6864511 is 1154686.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6864511 - 2⁵ = 6864479 is a prime.

It is a super-2 number, since 2×6864511² = 94243022538242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6864521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2661 + ... + 4561.

It is an arithmetic number, because the mean of its divisors is an integer number (901548).

Almost surely, 2^6864511 is an apocalyptic number.

6864511 is a deficient number, since it is larger than the sum of its proper divisors (347873).

6864511 is a wasteful number, since it uses less digits than its factorization.

6864511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2081.

The product of its digits is 5760, while the sum is 31.

The square root of 6864511 is about 2620.0211831205. The cubic root of 6864511 is about 190.0508728041.

The spelling of 6864511 in words is "six million, eight hundred sixty-four thousand, five hundred eleven".