799658880 has 128 divisors (see below), whose sum is σ = 2572970400. Its totient is φ = 211230720.

The previous prime is 799658879. The next prime is 799658887. The reversal of 799658880 is 88856997.

It is a happy number.

799658880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (799658887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207370 + ... + 211190.

Almost surely, 2^799658880 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 799658880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1286485200).

799658880 is an abundant number, since it is smaller than the sum of its proper divisors (1773311520).

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

799658880 is a wasteful number, since it uses less digits than its factorization.

799658880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3952 (or 3940 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 60.

The square root of 799658880 is about 28278.2403978748. The cubic root of 799658880 is about 928.1858030658.

The spelling of 799658880 in words is "seven hundred ninety-nine million, six hundred fifty-eight thousand, eight hundred eighty".