216902003 has 2 divisors, whose sum is σ = 216902004. Its totient is φ = 216902002.

The previous prime is 216901969. The next prime is 216902011. The reversal of 216902003 is 300209612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 216902003 - 2⁶ = 216901939 is a prime.

It is a super-3 number, since 3×216902003³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 216902003.

It is not a weakly prime, because it can be changed into another prime (216902033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108451001 + 108451002.

It is an arithmetic number, because the mean of its divisors is an integer number (108451002).

Almost surely, 2^216902003 is an apocalyptic number.

216902003 is a deficient number, since it is larger than the sum of its proper divisors (1).

216902003 is an equidigital number, since it uses as much as digits as its factorization.

216902003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 216902003 is about 14727.5932521237. The cubic root of 216902003 is about 600.8340280877.

The spelling of 216902003 in words is "two hundred sixteen million, nine hundred two thousand, three".