216879800 has 48 divisors (see below), whose sum is σ = 507530760. Its totient is φ = 86186880.

The previous prime is 216879797. The next prime is 216879809. The reversal of 216879800 is 8978612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216879809) 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, 27947 + ... + 34853.

Almost surely, 2^216879800 is an apocalyptic number.

216879800 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 216879800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253765380).

216879800 is an abundant number, since it is smaller than the sum of its proper divisors (290650960).

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

216879800 is a wasteful number, since it uses less digits than its factorization.

216879800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7080 (or 7071 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 216879800 is about 14726.8394436824. The cubic root of 216879800 is about 600.8135260899.

The spelling of 216879800 in words is "two hundred sixteen million, eight hundred seventy-nine thousand, eight hundred".