216879752 has 32 divisors (see below), whose sum is σ = 415800000. Its totient is φ = 106020288.

The previous prime is 216879749. The next prime is 216879757. The reversal of 216879752 is 257978612.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 216879697 and 216879706.

It is not an unprimeable number, because it can be changed into a prime (216879757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92774 + ... + 95082.

It is an arithmetic number, because the mean of its divisors is an integer number (12993750).

Almost surely, 2^216879752 is an apocalyptic number.

It is an amenable number.

216879752 is a deficient number, since it is larger than the sum of its proper divisors (198920248).

216879752 is a wasteful number, since it uses less digits than its factorization.

216879752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2573 (or 2569 counting only the distinct ones).

The product of its digits is 423360, while the sum is 47.

The square root of 216879752 is about 14726.8378140047. The cubic root of 216879752 is about 600.8134817658.

The spelling of 216879752 in words is "two hundred sixteen million, eight hundred seventy-nine thousand, seven hundred fifty-two".