6864623 has 2 divisors, whose sum is σ = 6864624. Its totient is φ = 6864622.

The previous prime is 6864607. The next prime is 6864629. The reversal of 6864623 is 3264686.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6864623 - 2⁴ = 6864607 is a prime.

It is a plaindrome in base 16.

It is a nialpdrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6864629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3432311 + 3432312.

It is an arithmetic number, because the mean of its divisors is an integer number (3432312).

Almost surely, 2^6864623 is an apocalyptic number.

6864623 is a deficient number, since it is larger than the sum of its proper divisors (1).

6864623 is an equidigital number, since it uses as much as digits as its factorization.

6864623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 35.

The square root of 6864623 is about 2620.0425569063. The cubic root of 6864623 is about 190.0519064093.

The spelling of 6864623 in words is "six million, eight hundred sixty-four thousand, six hundred twenty-three".