864546959 has 2 divisors, whose sum is σ = 864546960. Its totient is φ = 864546958.

The previous prime is 864546937. The next prime is 864546967. The reversal of 864546959 is 959645468.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 864546959 - 2⁸ = 864546703 is a prime.

It is a super-2 number, since 2×864546959² = 1494882888632295362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (864546929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432273479 + 432273480.

It is an arithmetic number, because the mean of its divisors is an integer number (432273480).

Almost surely, 2^864546959 is an apocalyptic number.

864546959 is a deficient number, since it is larger than the sum of its proper divisors (1).

864546959 is an equidigital number, since it uses as much as digits as its factorization.

864546959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9331200, while the sum is 56.

The square root of 864546959 is about 29403.1794029149. The cubic root of 864546959 is about 952.6415710284.

The spelling of 864546959 in words is "eight hundred sixty-four million, five hundred forty-six thousand, nine hundred fifty-nine".