216874423 has 8 divisors (see below), whose sum is σ = 230020992. Its totient is φ = 203771136.

The previous prime is 216874409. The next prime is 216874433. The reversal of 216874423 is 324478612.

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 216874423 - 2⁵ = 216874391 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 (216874433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190 + ... + 20827.

It is an arithmetic number, because the mean of its divisors is an integer number (28752624).

Almost surely, 2^216874423 is an apocalyptic number.

216874423 is a deficient number, since it is larger than the sum of its proper divisors (13146569).

216874423 is a wasteful number, since it uses less digits than its factorization.

216874423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21641.

The product of its digits is 64512, while the sum is 37.

The square root of 216874423 is about 14726.6568847108. The cubic root of 216874423 is about 600.8085608188.

The spelling of 216874423 in words is "two hundred sixteen million, eight hundred seventy-four thousand, four hundred twenty-three".