864379263 has 16 divisors (see below), whose sum is σ = 1331237376. Its totient is φ = 493050240.

The previous prime is 864379259. The next prime is 864379267. The reversal of 864379263 is 362973468.

It is an interprime number because it is at equal distance from previous prime (864379259) and next prime (864379267).

It is not a de Polignac number, because 864379263 - 2² = 864379259 is a prime.

It is a super-3 number, since 3×864379263³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864379267) 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 in 15 ways as a sum of consecutive naturals, for example, 769831 + ... + 770952.

It is an arithmetic number, because the mean of its divisors is an integer number (83202336).

Almost surely, 2^864379263 is an apocalyptic number.

864379263 is a deficient number, since it is larger than the sum of its proper divisors (466858113).

864379263 is a wasteful number, since it uses less digits than its factorization.

864379263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1540814.

The product of its digits is 1306368, while the sum is 48.

The square root of 864379263 is about 29400.3276002156. The cubic root of 864379263 is about 952.5799724808.

The spelling of 864379263 in words is "eight hundred sixty-four million, three hundred seventy-nine thousand, two hundred sixty-three".