842298817 has 2 divisors, whose sum is σ = 842298818. Its totient is φ = 842298816.

The previous prime is 842298803. The next prime is 842298827. The reversal of 842298817 is 718892248.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 503149761 + 339149056 = 22431^2 + 18416^2 .

It is a cyclic number.

It is not a de Polignac number, because 842298817 - 2⁷ = 842298689 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (842298827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421149408 + 421149409.

It is an arithmetic number, because the mean of its divisors is an integer number (421149409).

Almost surely, 2^842298817 is an apocalyptic number.

It is an amenable number.

842298817 is a deficient number, since it is larger than the sum of its proper divisors (1).

842298817 is an equidigital number, since it uses as much as digits as its factorization.

842298817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 516096, while the sum is 49.

The square root of 842298817 is about 29022.3847572869. The cubic root of 842298817 is about 944.3987355005.

The spelling of 842298817 in words is "eight hundred forty-two million, two hundred ninety-eight thousand, eight hundred seventeen".