864523344 has 20 divisors (see below), whose sum is σ = 2233352096. Its totient is φ = 288174432.

The previous prime is 864523301. The next prime is 864523357. The reversal of 864523344 is 443325468.

It is a super-2 number, since 2×864523344² = 1494801224641884672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9005404 + ... + 9005499.

Almost surely, 2^864523344 is an apocalyptic number.

It is an amenable number.

864523344 is an abundant number, since it is smaller than the sum of its proper divisors (1368828752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

864523344 is a wasteful number, since it uses less digits than its factorization.

864523344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18010914 (or 18010908 counting only the distinct ones).

The product of its digits is 276480, while the sum is 39.

The square root of 864523344 is about 29402.7778279536. Note that the first 3 decimals coincide. The cubic root of 864523344 is about 952.6328971848.

The spelling of 864523344 in words is "eight hundred sixty-four million, five hundred twenty-three thousand, three hundred forty-four".