216677700 has 72 divisors (see below), whose sum is σ = 696587360. Its totient is φ = 57780000.

The previous prime is 216677689. The next prime is 216677717. The reversal of 216677700 is 7776612.

216677700 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37426 + ... + 42825.

Almost surely, 2^216677700 is an apocalyptic number.

216677700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216677700 is an abundant number, since it is smaller than the sum of its proper divisors (479909660).

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

216677700 is a wasteful number, since it uses less digits than its factorization.

216677700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80274 (or 80261 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 36.

The square root of 216677700 is about 14719.9762228069. The cubic root of 216677700 is about 600.6268448811.

The spelling of 216677700 in words is "two hundred sixteen million, six hundred seventy-seven thousand, seven hundred".