879727978 has 16 divisors (see below), whose sum is σ = 1336289760. Its totient is φ = 434322000.

The previous prime is 879727969. The next prime is 879728027.

It is a happy number.

879727978 is nontrivially palindromic in base 10.

It is an unprimeable number.

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, 70813 + ... + 82303.

It is an arithmetic number, because the mean of its divisors is an integer number (83518110).

Almost surely, 2^879727978 is an apocalyptic number.

879727978 is a deficient number, since it is larger than the sum of its proper divisors (456561782).

879727978 is a wasteful number, since it uses less digits than its factorization.

879727978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11973.

The product of its digits is 24893568, while the sum is 64.

The square root of 879727978 is about 29660.2086641345. The cubic root of 879727978 is about 958.1852209631.

The spelling of 879727978 in words is "eight hundred seventy-nine million, seven hundred twenty-seven thousand, nine hundred seventy-eight".