868193 has 4 divisors (see below), whose sum is σ = 884628. Its totient is φ = 851760.

The previous prime is 868177. The next prime is 868199. The reversal of 868193 is 391868.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 208849 + 659344 = 457^2 + 812^2 .

It is a cyclic number.

It is not a de Polignac number, because 868193 - 2⁴ = 868177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (868199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8138 + ... + 8243.

It is an arithmetic number, because the mean of its divisors is an integer number (221157).

2⁸⁶⁸¹⁹³ is an apocalyptic number.

It is an amenable number.

868193 is a deficient number, since it is larger than the sum of its proper divisors (16435).

868193 is a wasteful number, since it uses less digits than its factorization.

868193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16434.

The product of its digits is 10368, while the sum is 35.

The square root of 868193 is about 931.7687481344. The cubic root of 868193 is about 95.3978879880.

The spelling of 868193 in words is "eight hundred sixty-eight thousand, one hundred ninety-three".