864548 has 18 divisors (see below), whose sum is σ = 1573026. Its totient is φ = 415744.

The previous prime is 864541. The next prime is 864551. The reversal of 864548 is 845468.

It can be written as a sum of positive squares in 3 ways, for example, as 399424 + 465124 = 632^2 + 682^2 .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 864548.

It is not an unprimeable number, because it can be changed into a prime (864541) by changing a digit.

864548 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3236 + ... + 3492.

2⁸⁶⁴⁵⁴⁸ is an apocalyptic number.

It is an amenable number.

864548 is a deficient number, since it is larger than the sum of its proper divisors (708478).

864548 is a wasteful number, since it uses less digits than its factorization.

864548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319 (or 288 counting only the distinct ones).

The product of its digits is 30720, while the sum is 35.

The square root of 864548 is about 929.8107334291. The cubic root of 864548 is about 95.2641953386.

The spelling of 864548 in words is "eight hundred sixty-four thousand, five hundred forty-eight".