864492263 has 2 divisors, whose sum is σ = 864492264. Its totient is φ = 864492262.

The previous prime is 864492247. The next prime is 864492301. The reversal of 864492263 is 362294468.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 864492263 - 2⁴ = 864492247 is a prime.

It is a super-2 number, since 2×864492263² = 1494693745573722338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (864492203) 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, 432246131 + 432246132.

It is an arithmetic number, because the mean of its divisors is an integer number (432246132).

Almost surely, 2^864492263 is an apocalyptic number.

864492263 is a deficient number, since it is larger than the sum of its proper divisors (1).

864492263 is an equidigital number, since it uses as much as digits as its factorization.

864492263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 44.

The square root of 864492263 is about 29402.2492847061. The cubic root of 864492263 is about 952.6214808214.

The spelling of 864492263 in words is "eight hundred sixty-four million, four hundred ninety-two thousand, two hundred sixty-three".