216890333 has 8 divisors (see below), whose sum is σ = 244766880. Its totient is φ = 190373680.

The previous prime is 216890269. The next prime is 216890347. The reversal of 216890333 is 333098612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 216890333 - 2⁶ = 216890269 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 216890293 and 216890302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216890393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339635 + ... + 340272.

It is an arithmetic number, because the mean of its divisors is an integer number (30595860).

Almost surely, 2^216890333 is an apocalyptic number.

It is an amenable number.

216890333 is a deficient number, since it is larger than the sum of its proper divisors (27876547).

216890333 is a wasteful number, since it uses less digits than its factorization.

216890333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679947.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 216890333 is about 14727.1970517135. The cubic root of 216890333 is about 600.8232523168.

The spelling of 216890333 in words is "two hundred sixteen million, eight hundred ninety thousand, three hundred thirty-three".