2016403 has 2 divisors, whose sum is σ = 2016404. Its totient is φ = 2016402.

The previous prime is 2016401. The next prime is 2016407. The reversal of 2016403 is 3046102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2016403 - 2¹ = 2016401 is a prime.

Together with 2016401, it forms a pair of twin primes.

2016403 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2016401) 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, 1008201 + 1008202.

It is an arithmetic number, because the mean of its divisors is an integer number (1008202).

2^2016403 is an apocalyptic number.

2016403 is a deficient number, since it is larger than the sum of its proper divisors (1).

2016403 is an equidigital number, since it uses as much as digits as its factorization.

2016403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2016403 is about 1420.0010563376. The cubic root of 2016403 is about 126.3356090276.

The spelling of 2016403 in words is "two million, sixteen thousand, four hundred three".