923869 has 2 divisors, whose sum is σ = 923870. Its totient is φ = 923868.

The previous prime is 923861. The next prime is 923903. The reversal of 923869 is 968329.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 792100 + 131769 = 890^2 + 363^2 .

It is an emirp because it is prime and its reverse (968329) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 923869 - 2³ = 923861 is a prime.

It is a super-2 number, since 2×923869² = 1707067858322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (923861) 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 as a sum of consecutive naturals, namely, 461934 + 461935.

It is an arithmetic number, because the mean of its divisors is an integer number (461935).

2⁹²³⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

923869 is a deficient number, since it is larger than the sum of its proper divisors (1).

923869 is an equidigital number, since it uses as much as digits as its factorization.

923869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 37.

The square root of 923869 is about 961.1810443408. The cubic root of 923869 is about 97.3950305754.

The spelling of 923869 in words is "nine hundred twenty-three thousand, eight hundred sixty-nine".