842003 has 2 divisors, whose sum is σ = 842004. Its totient is φ = 842002.

The previous prime is 841987. The next prime is 842021. The reversal of 842003 is 300248.

842003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 842003 - 2⁴ = 841987 is a prime.

It is not a weakly prime, because it can be changed into another prime (842063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421001 + 421002.

It is an arithmetic number, because the mean of its divisors is an integer number (421002).

2⁸⁴²⁰⁰³ is an apocalyptic number.

842003 is a deficient number, since it is larger than the sum of its proper divisors (1).

842003 is an equidigital number, since it uses as much as digits as its factorization.

842003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 842003 is about 917.6072144442. The cubic root of 842003 is about 94.4288164325.

The spelling of 842003 in words is "eight hundred forty-two thousand, three".