9878069 has 2 divisors, whose sum is σ = 9878070. Its totient is φ = 9878068.

The previous prime is 9878059. The next prime is 9878083. The reversal of 9878069 is 9608789.

9878069 is digitally balanced in base 3, 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., 5522500 + 4355569 = 2350^2 + 2087^2 .

It is a cyclic number.

It is not a de Polignac number, because 9878069 - 2⁴ = 9878053 is a prime.

It is a super-2 number, since 2×9878069² = 195152494337522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9878039) 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, 4939034 + 4939035.

It is an arithmetic number, because the mean of its divisors is an integer number (4939035).

Almost surely, 2^9878069 is an apocalyptic number.

It is an amenable number.

9878069 is a deficient number, since it is larger than the sum of its proper divisors (1).

9878069 is an equidigital number, since it uses as much as digits as its factorization.

9878069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 47.

The square root of 9878069 is about 3142.9395476210. The cubic root of 9878069 is about 214.5642445164.

The spelling of 9878069 in words is "nine million, eight hundred seventy-eight thousand, sixty-nine".