864111936 has 56 divisors (see below), whose sum is σ = 2288641600. Its totient is φ = 287741952.

The previous prime is 864111893. The next prime is 864111953. The reversal of 864111936 is 639111468.

It is a junction number, because it is equal to n+sod(n) for n = 864111894 and 864111903.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 267000 + ... + 270216.

It is an arithmetic number, because the mean of its divisors is an integer number (40868600).

Almost surely, 2^864111936 is an apocalyptic number.

It is an amenable number.

864111936 is an abundant number, since it is smaller than the sum of its proper divisors (1424529664).

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

864111936 is a wasteful number, since it uses less digits than its factorization.

864111936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4631 (or 4621 counting only the distinct ones).

The product of its digits is 31104, while the sum is 39.

The square root of 864111936 is about 29395.7809217581. The cubic root of 864111936 is about 952.4817607298.

The spelling of 864111936 in words is "eight hundred sixty-four million, one hundred eleven thousand, nine hundred thirty-six".