879686978 has 8 divisors (see below), whose sum is σ = 1341162300. Its totient is φ = 432632880.

The previous prime is 879686923. The next prime is 879686999.

879686978 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 669929689 + 209757289 = 25883^2 + 14483^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3605153 + ... + 3605396.

Almost surely, 2^879686978 is an apocalyptic number.

879686978 is a deficient number, since it is larger than the sum of its proper divisors (461475322).

879686978 is a wasteful number, since it uses less digits than its factorization.

879686978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7210612.

The product of its digits is 73156608, while the sum is 68.

The square root of 879686978 is about 29659.5174943896. The cubic root of 879686978 is about 958.1703352236.

The spelling of 879686978 in words is "eight hundred seventy-nine million, six hundred eighty-six thousand, nine hundred seventy-eight".