9876399 has 16 divisors (see below), whose sum is σ = 14280672. Its totient is φ = 6035328.

The previous prime is 9876379. The next prime is 9876413. The reversal of 9876399 is 9936789.

It is not a de Polignac number, because 9876399 - 2⁷ = 9876271 is a prime.

9876399 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9876359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5317 + ... + 6929.

It is an arithmetic number, because the mean of its divisors is an integer number (892542).

Almost surely, 2^9876399 is an apocalyptic number.

9876399 is a deficient number, since it is larger than the sum of its proper divisors (4404273).

9876399 is a wasteful number, since it uses less digits than its factorization.

9876399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1786.

The product of its digits is 734832, while the sum is 51.

The square root of 9876399 is about 3142.6738615389. The cubic root of 9876399 is about 214.5521523257.

The spelling of 9876399 in words is "nine million, eight hundred seventy-six thousand, three hundred ninety-nine".