216734741 has 2 divisors, whose sum is σ = 216734742. Its totient is φ = 216734740.

The previous prime is 216734723. The next prime is 216734747. The reversal of 216734741 is 147437612.

216734741 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192626641 + 24108100 = 13879^2 + 4910^2 .

It is a cyclic number.

It is not a de Polignac number, because 216734741 - 2¹⁴ = 216718357 is a prime.

It is a Sophie Germain prime.

It is a Chen 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 (216734747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108367370 + 108367371.

It is an arithmetic number, because the mean of its divisors is an integer number (108367371).

Almost surely, 2^216734741 is an apocalyptic number.

It is an amenable number.

216734741 is a deficient number, since it is larger than the sum of its proper divisors (1).

216734741 is an equidigital number, since it uses as much as digits as its factorization.

216734741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224, while the sum is 35.

The square root of 216734741 is about 14721.9136324053. The cubic root of 216734741 is about 600.6795458127.

The spelling of 216734741 in words is "two hundred sixteen million, seven hundred thirty-four thousand, seven hundred forty-one".