6864479 has 2 divisors, whose sum is σ = 6864480. Its totient is φ = 6864478.

The previous prime is 6864461. The next prime is 6864497. The reversal of 6864479 is 9744686.

Together with next prime (6864497) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (6864461) and next prime (6864497).

It is a cyclic number.

It is not a de Polignac number, because 6864479 - 2²⁰ = 5815903 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6864449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3432239 + 3432240.

It is an arithmetic number, because the mean of its divisors is an integer number (3432240).

Almost surely, 2^6864479 is an apocalyptic number.

6864479 is a deficient number, since it is larger than the sum of its proper divisors (1).

6864479 is an equidigital number, since it uses as much as digits as its factorization.

6864479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 44.

The square root of 6864479 is about 2620.0150762925. The cubic root of 6864479 is about 190.0505774863.

The spelling of 6864479 in words is "six million, eight hundred sixty-four thousand, four hundred seventy-nine".