216341803 has 2 divisors, whose sum is σ = 216341804. Its totient is φ = 216341802.

The previous prime is 216341791. The next prime is 216341819. The reversal of 216341803 is 308143612.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-216341803 is a prime.

It is not a weakly prime, because it can be changed into another prime (216341903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108170901 + 108170902.

It is an arithmetic number, because the mean of its divisors is an integer number (108170902).

Almost surely, 2^216341803 is an apocalyptic number.

216341803 is a deficient number, since it is larger than the sum of its proper divisors (1).

216341803 is an equidigital number, since it uses as much as digits as its factorization.

216341803 is an odious number, because the sum of its binary digits is odd.

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

The square root of 216341803 is about 14708.5622342906. The cubic root of 216341803 is about 600.3163174687.

The spelling of 216341803 in words is "two hundred sixteen million, three hundred forty-one thousand, eight hundred three".