879909978 has 8 divisors (see below), whose sum is σ = 1759819968. Its totient is φ = 293303324.

The previous prime is 879909973. The next prime is 879910051.

879909978 is nontrivially palindromic in base 10.

879909978 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.

879909978 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (879909973) 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, 73325826 + ... + 73325837.

It is an arithmetic number, because the mean of its divisors is an integer number (219977496).

Almost surely, 2^879909978 is an apocalyptic number.

879909978 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.

879909978 is a wasteful number, since it uses less digits than its factorization.

879909978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146651668.

The product of its (nonzero) digits is 20575296, while the sum is 66.

The square root of 879909978 is about 29663.2765890756. The cubic root of 879909978 is about 958.2512935408.

The spelling of 879909978 in words is "eight hundred seventy-nine million, nine hundred nine thousand, nine hundred seventy-eight".