864928 has 24 divisors (see below), whose sum is σ = 1723680. Its totient is φ = 427200.

The previous prime is 864917. The next prime is 864947. The reversal of 864928 is 829468.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4743 + ... + 4921.

It is an arithmetic number, because the mean of its divisors is an integer number (71820).

2⁸⁶⁴⁹²⁸ is an apocalyptic number.

It is an amenable number.

864928 is a deficient number, since it is larger than the sum of its proper divisors (858752).

864928 is a wasteful number, since it uses less digits than its factorization.

864928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340 (or 332 counting only the distinct ones).

The product of its digits is 27648, while the sum is 37.

The square root of 864928 is about 930.0150536416. The cubic root of 864928 is about 95.2781506431.

The spelling of 864928 in words is "eight hundred sixty-four thousand, nine hundred twenty-eight".