216078700 has 18 divisors (see below), whose sum is σ = 468890996. Its totient is φ = 86431440.

The previous prime is 216078677. The next prime is 216078701. The reversal of 216078700 is 7870612.

It is a happy number.

216078700 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 (216078701) 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 5 ways as a sum of consecutive naturals, for example, 1080294 + ... + 1080493.

Almost surely, 2^216078700 is an apocalyptic number.

216078700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216078700 is an abundant number, since it is smaller than the sum of its proper divisors (252812296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216078700 is a wasteful number, since it uses less digits than its factorization.

216078700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2160801 (or 2160794 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 216078700 is about 14699.6156412336. The cubic root of 216078700 is about 600.0728615220.

The spelling of 216078700 in words is "two hundred sixteen million, seventy-eight thousand, seven hundred".