9780879 has 4 divisors (see below), whose sum is σ = 13041176. Its totient is φ = 6520584.

The previous prime is 9780871. The next prime is 9780887.

9780879 is nontrivially palindromic in base 10.

9780879 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (9780871) and next prime (9780887).

It is not a de Polignac number, because 9780879 - 2³ = 9780871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9780871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1630144 + ... + 1630149.

It is an arithmetic number, because the mean of its divisors is an integer number (3260294).

Almost surely, 2^9780879 is an apocalyptic number.

9780879 is a deficient number, since it is larger than the sum of its proper divisors (3260297).

9780879 is a wasteful number, since it uses less digits than its factorization.

9780879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3260296.

The product of its (nonzero) digits is 254016, while the sum is 48.

The square root of 9780879 is about 3127.4396876679. The cubic root of 9780879 is about 213.8582270571.

The spelling of 9780879 in words is "nine million, seven hundred eighty thousand, eight hundred seventy-nine".