216860700 has 144 divisors (see below), whose sum is σ = 736730624. Its totient is φ = 48211200.

The previous prime is 216860671. The next prime is 216860719. The reversal of 216860700 is 7068612.

It is a happy number.

216860700 is digitally balanced in base 3, 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 (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 76305 + ... + 79095.

Almost surely, 2^216860700 is an apocalyptic number.

216860700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216860700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (368365312).

216860700 is an abundant number, since it is smaller than the sum of its proper divisors (519869924).

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

216860700 is a wasteful number, since it uses less digits than its factorization.

216860700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2852 (or 2845 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 216860700 is about 14726.1909535358. The cubic root of 216860700 is about 600.7958882475.

The spelling of 216860700 in words is "two hundred sixteen million, eight hundred sixty thousand, seven hundred".