868575 has 24 divisors (see below), whose sum is σ = 1479568. Its totient is φ = 449280.

The previous prime is 868561. The next prime is 868577. The reversal of 868575 is 575868.

It is a happy number.

It is not a de Polignac number, because 868575 - 2⁴ = 868559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868577) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2619 + ... + 2931.

2⁸⁶⁸⁵⁷⁵ is an apocalyptic number.

868575 is a deficient number, since it is larger than the sum of its proper divisors (610993).

868575 is a wasteful number, since it uses less digits than its factorization.

868575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363 (or 358 counting only the distinct ones).

The product of its digits is 67200, while the sum is 39.

The square root of 868575 is about 931.9737120756. The cubic root of 868575 is about 95.4118774465.

The spelling of 868575 in words is "eight hundred sixty-eight thousand, five hundred seventy-five".