212284799 has 4 divisors (see below), whose sum is σ = 218022264. Its totient is φ = 206547336.

The previous prime is 212284783. The next prime is 212284829. The reversal of 212284799 is 997482212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212284799 - 2⁴ = 212284783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212284099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2868677 + ... + 2868750.

It is an arithmetic number, because the mean of its divisors is an integer number (54505566).

Almost surely, 2^212284799 is an apocalyptic number.

212284799 is a deficient number, since it is larger than the sum of its proper divisors (5737465).

212284799 is an equidigital number, since it uses as much as digits as its factorization.

212284799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5737464.

The product of its digits is 145152, while the sum is 44.

The square root of 212284799 is about 14569.9965339735. The cubic root of 212284799 is about 596.5400857470.

The spelling of 212284799 in words is "two hundred twelve million, two hundred eighty-four thousand, seven hundred ninety-nine".