216671003 has 4 divisors (see below), whose sum is σ = 228074760. Its totient is φ = 205267248.

The previous prime is 216670999. The next prime is 216671053. The reversal of 216671003 is 300176612.

216671003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 216671003 - 2² = 216670999 is a prime.

It is a Duffinian number.

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (216671053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5701850 + ... + 5701887.

It is an arithmetic number, because the mean of its divisors is an integer number (57018690).

Almost surely, 2^216671003 is an apocalyptic number.

216671003 is a deficient number, since it is larger than the sum of its proper divisors (11403757).

216671003 is a wasteful number, since it uses less digits than its factorization.

216671003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11403756.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 216671003 is about 14719.7487410621. The cubic root of 216671003 is about 600.6206568279.

The spelling of 216671003 in words is "two hundred sixteen million, six hundred seventy-one thousand, three".