879779778 has 8 divisors (see below), whose sum is σ = 1759559568. Its totient is φ = 293259924.

The previous prime is 879779773. The next prime is 879779827. The reversal of 879779778 is 877977978.

879779778 is digitally balanced in base 2, 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.

879779778 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (879779773) 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, 73314976 + ... + 73314987.

It is an arithmetic number, because the mean of its divisors is an integer number (219944946).

Almost surely, 2^879779778 is an apocalyptic number.

879779778 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

879779778 is a wasteful number, since it uses less digits than its factorization.

879779778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146629968.

The product of its digits is 87127488, while the sum is 69.

The square root of 879779778 is about 29661.0818750766. The cubic root of 879779778 is about 958.2040271629.

The spelling of 879779778 in words is "eight hundred seventy-nine million, seven hundred seventy-nine thousand, seven hundred seventy-eight".