842300861 has 2 divisors, whose sum is σ = 842300862. Its totient is φ = 842300860.

The previous prime is 842300839. The next prime is 842300881. The reversal of 842300861 is 168003248.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 839898361 + 2402500 = 28981^2 + 1550^2 .

It is a cyclic number.

It is not a de Polignac number, because 842300861 - 2¹⁰ = 842299837 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (842300831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421150430 + 421150431.

It is an arithmetic number, because the mean of its divisors is an integer number (421150431).

Almost surely, 2^842300861 is an apocalyptic number.

It is an amenable number.

842300861 is a deficient number, since it is larger than the sum of its proper divisors (1).

842300861 is an equidigital number, since it uses as much as digits as its factorization.

842300861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 842300861 is about 29022.4199714634. The cubic root of 842300861 is about 944.3994994216.

The spelling of 842300861 in words is "eight hundred forty-two million, three hundred thousand, eight hundred sixty-one".