212484823 has 4 divisors (see below), whose sum is σ = 215395648. Its totient is φ = 209574000.

The previous prime is 212484793. The next prime is 212484871. The reversal of 212484823 is 328484212.

212484823 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212484823 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 (212484893) 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, 1455303 + ... + 1455448.

It is an arithmetic number, because the mean of its divisors is an integer number (53848912).

Almost surely, 2^212484823 is an apocalyptic number.

212484823 is a deficient number, since it is larger than the sum of its proper divisors (2910825).

212484823 is an equidigital number, since it uses as much as digits as its factorization.

212484823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2910824.

The product of its digits is 24576, while the sum is 34.

The square root of 212484823 is about 14576.8591610127. The cubic root of 212484823 is about 596.7273889632.

The spelling of 212484823 in words is "two hundred twelve million, four hundred eighty-four thousand, eight hundred twenty-three".