9779879 has 8 divisors (see below), whose sum is σ = 10387440. Its totient is φ = 9175936.

The previous prime is 9779857. The next prime is 9779881. The reversal of 9779879 is 9789779.

9779879 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9779879 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9779839) 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 in 7 ways as a sum of consecutive naturals, for example, 6437 + ... + 7809.

It is an arithmetic number, because the mean of its divisors is an integer number (1298430).

Almost surely, 2^9779879 is an apocalyptic number.

9779879 is a deficient number, since it is larger than the sum of its proper divisors (607561).

9779879 is a wasteful number, since it uses less digits than its factorization.

9779879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1809.

The product of its digits is 2000376, while the sum is 56.

The square root of 9779879 is about 3127.2798083958. The cubic root of 9779879 is about 213.8509384990.

The spelling of 9779879 in words is "nine million, seven hundred seventy-nine thousand, eight hundred seventy-nine".