879686979 has 8 divisors (see below), whose sum is σ = 1177589952. Its totient is φ = 584121000.

The previous prime is 879686923. The next prime is 879686999. The reversal of 879686979 is 979686978.

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

It is not a de Polignac number, because 879686979 - 2⁷ = 879686851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (879686999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 583369 + ... + 584874.

It is an arithmetic number, because the mean of its divisors is an integer number (147198744).

Almost surely, 2^879686979 is an apocalyptic number.

879686979 is a deficient number, since it is larger than the sum of its proper divisors (297902973).

879686979 is a wasteful number, since it uses less digits than its factorization.

879686979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168497.

The product of its digits is 82301184, while the sum is 69.

The square root of 879686979 is about 29659.5175112475. The cubic root of 879686979 is about 958.1703355867.

Subtracting 879686979 from its reverse (979686978), we obtain a palindrome (99999999).

The spelling of 879686979 in words is "eight hundred seventy-nine million, six hundred eighty-six thousand, nine hundred seventy-nine".