6505867 has 2 divisors, whose sum is σ = 6505868. Its totient is φ = 6505866.

The previous prime is 6505861. The next prime is 6505931. The reversal of 6505867 is 7685056.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6505867 - 2³ = 6505859 is a prime.

It is a super-4 number, since 4×6505867⁴ (a number of 28 digits) contains 4444 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6505861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3252933 + 3252934.

It is an arithmetic number, because the mean of its divisors is an integer number (3252934).

Almost surely, 2^6505867 is an apocalyptic number.

6505867 is a deficient number, since it is larger than the sum of its proper divisors (1).

6505867 is an equidigital number, since it uses as much as digits as its factorization.

6505867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 6505867 is about 2550.6601106380. The cubic root of 6505867 is about 186.6816913218.

The spelling of 6505867 in words is "six million, five hundred five thousand, eight hundred sixty-seven".