216295923 has 8 divisors (see below), whose sum is σ = 288464128. Its totient is φ = 144162504.

The previous prime is 216295921. The next prime is 216295931. The reversal of 216295923 is 329592612.

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

It is not a de Polignac number, because 216295923 - 2¹ = 216295921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216295921) 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, 15186 + ... + 25752.

It is an arithmetic number, because the mean of its divisors is an integer number (36058016).

Almost surely, 2^216295923 is an apocalyptic number.

216295923 is a deficient number, since it is larger than the sum of its proper divisors (72168205).

216295923 is a wasteful number, since it uses less digits than its factorization.

216295923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17393.

The product of its digits is 58320, while the sum is 39.

The square root of 216295923 is about 14707.0025158086. The cubic root of 216295923 is about 600.2738777437.

The spelling of 216295923 in words is "two hundred sixteen million, two hundred ninety-five thousand, nine hundred twenty-three".