212470417 has 2 divisors, whose sum is σ = 212470418. Its totient is φ = 212470416.

The previous prime is 212470361. The next prime is 212470429. The reversal of 212470417 is 714074212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152004241 + 60466176 = 12329^2 + 7776^2 .

It is a cyclic number.

It is not a de Polignac number, because 212470417 - 2¹¹ = 212468369 is a prime.

It is not a weakly prime, because it can be changed into another prime (212470117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106235208 + 106235209.

It is an arithmetic number, because the mean of its divisors is an integer number (106235209).

Almost surely, 2^212470417 is an apocalyptic number.

It is an amenable number.

212470417 is a deficient number, since it is larger than the sum of its proper divisors (1).

212470417 is an equidigital number, since it uses as much as digits as its factorization.

212470417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 212470417 is about 14576.3650132672. The cubic root of 212470417 is about 596.7139030603.

The spelling of 212470417 in words is "two hundred twelve million, four hundred seventy thousand, four hundred seventeen".