216678796 has 12 divisors (see below), whose sum is σ = 379669248. Its totient is φ = 108201872.

The previous prime is 216678779. The next prime is 216678799. The reversal of 216678796 is 697876612.

It is a happy number.

216678796 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (216678799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30796 + ... + 37171.

It is an arithmetic number, because the mean of its divisors is an integer number (31639104).

Almost surely, 2^216678796 is an apocalyptic number.

It is an amenable number.

216678796 is a deficient number, since it is larger than the sum of its proper divisors (162990452).

216678796 is a wasteful number, since it uses less digits than its factorization.

216678796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68768 (or 68766 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 52.

The square root of 216678796 is about 14720.0134510808. The cubic root of 216678796 is about 600.6278575771.

The spelling of 216678796 in words is "two hundred sixteen million, six hundred seventy-eight thousand, seven hundred ninety-six".