244221697 has 2 divisors, whose sum is σ = 244221698. Its totient is φ = 244221696.

The previous prime is 244221683. The next prime is 244221701. The reversal of 244221697 is 796122442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 228886641 + 15335056 = 15129^2 + 3916^2 .

It is a cyclic number.

It is not a de Polignac number, because 244221697 - 2²⁷ = 110003969 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (244221617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122110848 + 122110849.

It is an arithmetic number, because the mean of its divisors is an integer number (122110849).

Almost surely, 2^244221697 is an apocalyptic number.

It is an amenable number.

244221697 is a deficient number, since it is larger than the sum of its proper divisors (1).

244221697 is an equidigital number, since it uses as much as digits as its factorization.

244221697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 37.

The square root of 244221697 is about 15627.5940886625. The cubic root of 244221697 is about 625.0691737837.

The spelling of 244221697 in words is "two hundred forty-four million, two hundred twenty-one thousand, six hundred ninety-seven".