9782879 has 2 divisors, whose sum is σ = 9782880. Its totient is φ = 9782878.

The previous prime is 9782873. The next prime is 9782917.

It is a happy number.

9782879 is nontrivially palindromic in base 10.

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 9782879 - 2⁸ = 9782623 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9782873) 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, 4891439 + 4891440.

It is an arithmetic number, because the mean of its divisors is an integer number (4891440).

Almost surely, 2^9782879 is an apocalyptic number.

9782879 is a deficient number, since it is larger than the sum of its proper divisors (1).

9782879 is an equidigital number, since it uses as much as digits as its factorization.

9782879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 50.

The square root of 9782879 is about 3127.7594216947. The cubic root of 9782879 is about 213.8728026832.

The spelling of 9782879 in words is "nine million, seven hundred eighty-two thousand, eight hundred seventy-nine".