212789383 has 2 divisors, whose sum is σ = 212789384. Its totient is φ = 212789382.

The previous prime is 212789377. The next prime is 212789393. The reversal of 212789383 is 383987212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212789383 - 2⁹ = 212788871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212789393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106394691 + 106394692.

It is an arithmetic number, because the mean of its divisors is an integer number (106394692).

Almost surely, 2^212789383 is an apocalyptic number.

212789383 is a deficient number, since it is larger than the sum of its proper divisors (1).

212789383 is an equidigital number, since it uses as much as digits as its factorization.

212789383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 43.

The square root of 212789383 is about 14587.3021151959. The cubic root of 212789383 is about 597.0123544641.

The spelling of 212789383 in words is "two hundred twelve million, seven hundred eighty-nine thousand, three hundred eighty-three".