842801 has 2 divisors, whose sum is σ = 842802. Its totient is φ = 842800.

The previous prime is 842791. The next prime is 842813. The reversal of 842801 is 108248.

842801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 616225 + 226576 = 785^2 + 476^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-842801 is a prime.

It is a plaindrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 842801.

It is not a weakly prime, because it can be changed into another prime (842701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421400 + 421401.

It is an arithmetic number, because the mean of its divisors is an integer number (421401).

2⁸⁴²⁸⁰¹ is an apocalyptic number.

It is an amenable number.

842801 is a deficient number, since it is larger than the sum of its proper divisors (1).

842801 is an equidigital number, since it uses as much as digits as its factorization.

842801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 842801 is about 918.0419380399. The cubic root of 842801 is about 94.4586383383.

The spelling of 842801 in words is "eight hundred forty-two thousand, eight hundred one".