216952783 has 8 divisors (see below), whose sum is σ = 223619616. Its totient is φ = 210386400.

The previous prime is 216952777. The next prime is 216952807. The reversal of 216952783 is 387259612.

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 216952783 - 2⁹ = 216952271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216952763) 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, 20716 + ... + 29377.

It is an arithmetic number, because the mean of its divisors is an integer number (27952452).

Almost surely, 2^216952783 is an apocalyptic number.

216952783 is a deficient number, since it is larger than the sum of its proper divisors (6666833).

216952783 is an equidigital number, since it uses as much as digits as its factorization.

216952783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50225.

The product of its digits is 181440, while the sum is 43.

The square root of 216952783 is about 14729.3171260585. The cubic root of 216952783 is about 600.8809125038.

The spelling of 216952783 in words is "two hundred sixteen million, nine hundred fifty-two thousand, seven hundred eighty-three".