9800839 has 2 divisors, whose sum is σ = 9800840. Its totient is φ = 9800838.

The previous prime is 9800831. The next prime is 9800873. The reversal of 9800839 is 9380089.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9800839 - 2³ = 9800831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9800798 and 9800807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9800831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4900419 + 4900420.

It is an arithmetic number, because the mean of its divisors is an integer number (4900420).

Almost surely, 2^9800839 is an apocalyptic number.

9800839 is a deficient number, since it is larger than the sum of its proper divisors (1).

9800839 is an equidigital number, since it uses as much as digits as its factorization.

9800839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 9800839 is about 3130.6291699912. The cubic root of 9800839 is about 214.0036028741.

The spelling of 9800839 in words is "nine million, eight hundred thousand, eight hundred thirty-nine".