9878039 has 2 divisors, whose sum is σ = 9878040. Its totient is φ = 9878038.

The previous prime is 9878023. The next prime is 9878041. The reversal of 9878039 is 9308789.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9878039 - 2⁴ = 9878023 is a prime.

Together with 9878041, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9878059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4939019 + 4939020.

It is an arithmetic number, because the mean of its divisors is an integer number (4939020).

Almost surely, 2^9878039 is an apocalyptic number.

9878039 is a deficient number, since it is larger than the sum of its proper divisors (1).

9878039 is an equidigital number, since it uses as much as digits as its factorization.

9878039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 9878039 is about 3142.9347750152. The cubic root of 9878039 is about 214.5640273034.

The spelling of 9878039 in words is "nine million, eight hundred seventy-eight thousand, thirty-nine".