8428003 has 2 divisors, whose sum is σ = 8428004. Its totient is φ = 8428002.

The previous prime is 8427977. The next prime is 8428031. The reversal of 8428003 is 3008248.

8428003 is digitally balanced in base 3, 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 8428003 - 2⁹ = 8427491 is a prime.

It is not a weakly prime, because it can be changed into another prime (8428403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4214001 + 4214002.

It is an arithmetic number, because the mean of its divisors is an integer number (4214002).

Almost surely, 2^8428003 is an apocalyptic number.

8428003 is a deficient number, since it is larger than the sum of its proper divisors (1).

8428003 is an equidigital number, since it uses as much as digits as its factorization.

8428003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 8428003 is about 2903.1023061546. The cubic root of 8428003 is about 203.5049108680.

The spelling of 8428003 in words is "eight million, four hundred twenty-eight thousand, three".