848220817 has 2 divisors, whose sum is σ = 848220818. Its totient is φ = 848220816.

The previous prime is 848220811. The next prime is 848220829. The reversal of 848220817 is 718022848.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 538425616 + 309795201 = 23204^2 + 17601^2 .

It is a cyclic number.

It is not a de Polignac number, because 848220817 - 2⁷ = 848220689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 848220817.

It is not a weakly prime, because it can be changed into another prime (848220811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 424110408 + 424110409.

It is an arithmetic number, because the mean of its divisors is an integer number (424110409).

Almost surely, 2^848220817 is an apocalyptic number.

It is an amenable number.

848220817 is a deficient number, since it is larger than the sum of its proper divisors (1).

848220817 is an equidigital number, since it uses as much as digits as its factorization.

848220817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57344, while the sum is 40.

The square root of 848220817 is about 29124.2307537899. The cubic root of 848220817 is about 946.6068486278.

The spelling of 848220817 in words is "eight hundred forty-eight million, two hundred twenty thousand, eight hundred seventeen".