212487800 has 96 divisors (see below), whose sum is σ = 589248000. Its totient is φ = 69674880.

The previous prime is 212487797. The next prime is 212487809. The reversal of 212487800 is 8784212.

212487800 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212487809) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28901 + ... + 35499.

It is an arithmetic number, because the mean of its divisors is an integer number (6138000).

Almost surely, 2^212487800 is an apocalyptic number.

212487800 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 212487800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294624000).

212487800 is an abundant number, since it is smaller than the sum of its proper divisors (376760200).

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

212487800 is a wasteful number, since it uses less digits than its factorization.

212487800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6645 (or 6636 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 212487800 is about 14576.9612745592. The cubic root of 212487800 is about 596.7301757491.

The spelling of 212487800 in words is "two hundred twelve million, four hundred eighty-seven thousand, eight hundred".