216928383 has 16 divisors (see below), whose sum is σ = 335978496. Its totient is φ = 121926240.

The previous prime is 216928351. The next prime is 216928399. The reversal of 216928383 is 383829612.

It is not a de Polignac number, because 216928383 - 2⁵ = 216928351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216928583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83391 + ... + 85952.

It is an arithmetic number, because the mean of its divisors is an integer number (20998656).

Almost surely, 2^216928383 is an apocalyptic number.

216928383 is a deficient number, since it is larger than the sum of its proper divisors (119050113).

216928383 is a wasteful number, since it uses less digits than its factorization.

216928383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169414.

The product of its digits is 124416, while the sum is 42.

The square root of 216928383 is about 14728.4888226865. The cubic root of 216928383 is about 600.8583852612.

The spelling of 216928383 in words is "two hundred sixteen million, nine hundred twenty-eight thousand, three hundred eighty-three".