868493 has 2 divisors, whose sum is σ = 868494. Its totient is φ = 868492.

The previous prime is 868489. The next prime is 868529. The reversal of 868493 is 394868.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 779689 + 88804 = 883^2 + 298^2 .

It is a cyclic number.

It is not a de Polignac number, because 868493 - 2² = 868489 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (868423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434246 + 434247.

It is an arithmetic number, because the mean of its divisors is an integer number (434247).

2⁸⁶⁸⁴⁹³ is an apocalyptic number.

It is an amenable number.

868493 is a deficient number, since it is larger than the sum of its proper divisors (1).

868493 is an equidigital number, since it uses as much as digits as its factorization.

868493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 38.

The square root of 868493 is about 931.9297183801. The cubic root of 868493 is about 95.4088748195.

The spelling of 868493 in words is "eight hundred sixty-eight thousand, four hundred ninety-three".