780806796 has 96 divisors (see below), whose sum is σ = 2344796160. Its totient is φ = 196257600.

The previous prime is 780806791. The next prime is 780806801. The reversal of 780806796 is 697608087.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (780806791) and next prime (780806801).

It is not an unprimeable number, because it can be changed into a prime (780806791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15015 + ... + 42273.

It is an arithmetic number, because the mean of its divisors is an integer number (24424960).

Almost surely, 2^780806796 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 780806796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1172398080).

780806796 is an abundant number, since it is smaller than the sum of its proper divisors (1563989364).

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

780806796 is a wasteful number, since it uses less digits than its factorization.

780806796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27315 (or 27313 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 51.

The square root of 780806796 is about 27942.9203198234. The cubic root of 780806796 is about 920.8336787825.

The spelling of 780806796 in words is "seven hundred eighty million, eight hundred six thousand, seven hundred ninety-six".