217027093 has 2 divisors, whose sum is σ = 217027094. Its totient is φ = 217027092.

The previous prime is 217027079. The next prime is 217027099. The reversal of 217027093 is 390720712.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 191047684 + 25979409 = 13822^2 + 5097^2 .

It is a cyclic number.

It is not a de Polignac number, because 217027093 - 2⁵ = 217027061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (217027099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108513546 + 108513547.

It is an arithmetic number, because the mean of its divisors is an integer number (108513547).

Almost surely, 2^217027093 is an apocalyptic number.

It is an amenable number.

217027093 is a deficient number, since it is larger than the sum of its proper divisors (1).

217027093 is an equidigital number, since it uses as much as digits as its factorization.

217027093 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 31.

The square root of 217027093 is about 14731.8394302952. The cubic root of 217027093 is about 600.9495086333.

The spelling of 217027093 in words is "two hundred seventeen million, twenty-seven thousand, ninety-three".