839963 has 2 divisors, whose sum is σ = 839964. Its totient is φ = 839962.

The previous prime is 839959. The next prime is 839981. The reversal of 839963 is 369938.

It is a happy number.

839963 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 is a cyclic number.

It is not a de Polignac number, because 839963 - 2² = 839959 is a prime.

It is not a weakly prime, because it can be changed into another prime (839903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419981 + 419982.

It is an arithmetic number, because the mean of its divisors is an integer number (419982).

2⁸³⁹⁹⁶³ is an apocalyptic number.

839963 is a deficient number, since it is larger than the sum of its proper divisors (1).

839963 is an equidigital number, since it uses as much as digits as its factorization.

839963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 38.

The square root of 839963 is about 916.4949536140. The cubic root of 839963 is about 94.3524942314.

The spelling of 839963 in words is "eight hundred thirty-nine thousand, nine hundred sixty-three".