212710973 has 2 divisors, whose sum is σ = 212710974. Its totient is φ = 212710972.

The previous prime is 212710961. The next prime is 212711011. The reversal of 212710973 is 379017212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 170746489 + 41964484 = 13067^2 + 6478^2 .

It is a cyclic number.

It is not a de Polignac number, because 212710973 - 2¹² = 212706877 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212710913) 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, 106355486 + 106355487.

It is an arithmetic number, because the mean of its divisors is an integer number (106355487).

Almost surely, 2^212710973 is an apocalyptic number.

It is an amenable number.

212710973 is a deficient number, since it is larger than the sum of its proper divisors (1).

212710973 is an equidigital number, since it uses as much as digits as its factorization.

212710973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 212710973 is about 14584.6142561262. The cubic root of 212710973 is about 596.9390151382.

The spelling of 212710973 in words is "two hundred twelve million, seven hundred ten thousand, nine hundred seventy-three".