2217248797 has 2 divisors, whose sum is σ = 2217248798. Its totient is φ = 2217248796.

The previous prime is 2217248777. The next prime is 2217248807. The reversal of 2217248797 is 7978427122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1798268836 + 418979961 = 42406^2 + 20469^2 .

It is a cyclic number.

It is not a de Polignac number, because 2217248797 - 2²³ = 2208860189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2217248797.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2217248707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1108624398 + 1108624399.

It is an arithmetic number, because the mean of its divisors is an integer number (1108624399).

Almost surely, 2^2217248797 is an apocalyptic number.

It is an amenable number.

2217248797 is a deficient number, since it is larger than the sum of its proper divisors (1).

2217248797 is an equidigital number, since it uses as much as digits as its factorization.

2217248797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 790272, while the sum is 49.

The square root of 2217248797 is about 47087.6713907154. The cubic root of 2217248797 is about 1303.9816381562.

The spelling of 2217248797 in words is "two billion, two hundred seventeen million, two hundred forty-eight thousand, seven hundred ninety-seven".