212284783 has 2 divisors, whose sum is σ = 212284784. Its totient is φ = 212284782.

The previous prime is 212284781. The next prime is 212284829. The reversal of 212284783 is 387482212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212284783 - 2¹ = 212284781 is a prime.

Together with 212284781, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212284781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106142391 + 106142392.

It is an arithmetic number, because the mean of its divisors is an integer number (106142392).

Almost surely, 2^212284783 is an apocalyptic number.

212284783 is a deficient number, since it is larger than the sum of its proper divisors (1).

212284783 is an equidigital number, since it uses as much as digits as its factorization.

212284783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43008, while the sum is 37.

The square root of 212284783 is about 14569.9959848999. The cubic root of 212284783 is about 596.5400707598.

The spelling of 212284783 in words is "two hundred twelve million, two hundred eighty-four thousand, seven hundred eighty-three".