868423 has 2 divisors, whose sum is σ = 868424. Its totient is φ = 868422.

The previous prime is 868409. The next prime is 868451. The reversal of 868423 is 324868.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 868423 - 2¹⁷ = 737351 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (868453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434211 + 434212.

It is an arithmetic number, because the mean of its divisors is an integer number (434212).

2⁸⁶⁸⁴²³ is an apocalyptic number.

868423 is a deficient number, since it is larger than the sum of its proper divisors (1).

868423 is an equidigital number, since it uses as much as digits as its factorization.

868423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 31.

The square root of 868423 is about 931.8921611431. The cubic root of 868423 is about 95.4063114518.

The spelling of 868423 in words is "eight hundred sixty-eight thousand, four hundred twenty-three".