216760788 has 36 divisors (see below), whose sum is σ = 549083808. Its totient is φ = 72100560.

The previous prime is 216760787. The next prime is 216760793. The reversal of 216760788 is 887067612.

216760788 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216760787) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11545 + ... + 23807.

It is an arithmetic number, because the mean of its divisors is an integer number (15252328).

Almost surely, 2^216760788 is an apocalyptic number.

It is an amenable number.

216760788 is an abundant number, since it is smaller than the sum of its proper divisors (332323020).

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

216760788 is a wasteful number, since it uses less digits than its factorization.

216760788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12764 (or 12759 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 216760788 is about 14722.7982394652. The cubic root of 216760788 is about 600.7036079040.

The spelling of 216760788 in words is "two hundred sixteen million, seven hundred sixty thousand, seven hundred eighty-eight".