842923 has 2 divisors, whose sum is σ = 842924. Its totient is φ = 842922.

The previous prime is 842887. The next prime is 842939. The reversal of 842923 is 329248.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-842923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 842891 and 842900.

It is not a weakly prime, because it can be changed into another prime (842993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421461 + 421462.

It is an arithmetic number, because the mean of its divisors is an integer number (421462).

2⁸⁴²⁹²³ is an apocalyptic number.

842923 is a deficient number, since it is larger than the sum of its proper divisors (1).

842923 is an equidigital number, since it uses as much as digits as its factorization.

842923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 28.

The square root of 842923 is about 918.1083814017. The cubic root of 842923 is about 94.4631959179.

The spelling of 842923 in words is "eight hundred forty-two thousand, nine hundred twenty-three".