839801 has 2 divisors, whose sum is σ = 839802. Its totient is φ = 839800.

The previous prime is 839791. The next prime is 839809. The reversal of 839801 is 108938.

It is a happy number.

839801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 724201 + 115600 = 851^2 + 340^2 .

It is a cyclic number.

It is not a de Polignac number, because 839801 - 2¹⁰ = 838777 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 839801.

It is not a weakly prime, because it can be changed into another prime (839809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419900 + 419901.

It is an arithmetic number, because the mean of its divisors is an integer number (419901).

2⁸³⁹⁸⁰¹ is an apocalyptic number.

It is an amenable number.

839801 is a deficient number, since it is larger than the sum of its proper divisors (1).

839801 is an equidigital number, since it uses as much as digits as its factorization.

839801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 839801 is about 916.4065691602. The cubic root of 839801 is about 94.3464280567.

The spelling of 839801 in words is "eight hundred thirty-nine thousand, eight hundred one".