216826097 has 2 divisors, whose sum is σ = 216826098. Its totient is φ = 216826096.

The previous prime is 216826079. The next prime is 216826117. The reversal of 216826097 is 790628612.

Together with previous prime (216826079) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128165041 + 88661056 = 11321^2 + 9416^2 .

It is a cyclic number.

It is not a de Polignac number, because 216826097 - 2¹⁰ = 216825073 is a prime.

It is a weakly prime.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108413048 + 108413049.

It is an arithmetic number, because the mean of its divisors is an integer number (108413049).

Almost surely, 2^216826097 is an apocalyptic number.

It is an amenable number.

216826097 is a deficient number, since it is larger than the sum of its proper divisors (1).

216826097 is an equidigital number, since it uses as much as digits as its factorization.

216826097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 216826097 is about 14725.0160271560. The cubic root of 216826097 is about 600.7639315644.

The spelling of 216826097 in words is "two hundred sixteen million, eight hundred twenty-six thousand, ninety-seven".