779120 has 20 divisors (see below), whose sum is σ = 1811640. Its totient is φ = 311616.

The previous prime is 779111. The next prime is 779131. The reversal of 779120 is 21977.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 779120.

It is a congruent number.

It is an unprimeable number.

779120 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4790 + ... + 4949.

It is an arithmetic number, because the mean of its divisors is an integer number (90582).

2⁷⁷⁹¹²⁰ is an apocalyptic number.

It is an amenable number.

779120 is an abundant number, since it is smaller than the sum of its proper divisors (1032520).

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

779120 is a wasteful number, since it uses less digits than its factorization.

779120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9752 (or 9746 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 26.

The square root of 779120 is about 882.6777441400. The cubic root of 779120 is about 92.0170100873.

The spelling of 779120 in words is "seven hundred seventy-nine thousand, one hundred twenty".