88243217 has 2 divisors, whose sum is σ = 88243218. Its totient is φ = 88243216.

The previous prime is 88243213. The next prime is 88243219. The reversal of 88243217 is 71234288.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54184321 + 34058896 = 7361^2 + 5836^2 .

It is a cyclic number.

It is not a de Polignac number, because 88243217 - 2² = 88243213 is a prime.

Together with 88243219, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (88243213) 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, 44121608 + 44121609.

It is an arithmetic number, because the mean of its divisors is an integer number (44121609).

Almost surely, 2^88243217 is an apocalyptic number.

It is an amenable number.

88243217 is a deficient number, since it is larger than the sum of its proper divisors (1).

88243217 is an equidigital number, since it uses as much as digits as its factorization.

88243217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21504, while the sum is 35.

The square root of 88243217 is about 9393.7860844284. The cubic root of 88243217 is about 445.2054212972.

The spelling of 88243217 in words is "eighty-eight million, two hundred forty-three thousand, two hundred seventeen".