216849303 has 36 divisors (see below), whose sum is σ = 347694984. Its totient is φ = 130125600.

The previous prime is 216849277. The next prime is 216849317. The reversal of 216849303 is 303948612.

216849303 is a `hidden beast` number, since 2 + 168 + 493 + 0 + 3 = 666.

It is not a de Polignac number, because 216849303 - 2⁵ = 216849271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216849343) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 115593 + ... + 117453.

It is an arithmetic number, because the mean of its divisors is an integer number (9658194).

Almost surely, 2^216849303 is an apocalyptic number.

216849303 is a deficient number, since it is larger than the sum of its proper divisors (130845681).

216849303 is a wasteful number, since it uses less digits than its factorization.

216849303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996 (or 1982 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 216849303 is about 14725.8039848424. The cubic root of 216849303 is about 600.7853632258.

The spelling of 216849303 in words is "two hundred sixteen million, eight hundred forty-nine thousand, three hundred three".