780796716 has 96 divisors (see below), whose sum is σ = 2200773120. Its totient is φ = 210470400.

The previous prime is 780796711. The next prime is 780796729. The reversal of 780796716 is 617697087.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (780796711) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 447606 + ... + 449346.

It is an arithmetic number, because the mean of its divisors is an integer number (22924720).

Almost surely, 2^780796716 is an apocalyptic number.

780796716 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 780796716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1100386560).

780796716 is an abundant number, since it is smaller than the sum of its proper divisors (1419976404).

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

780796716 is a wasteful number, since it uses less digits than its factorization.

780796716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2055 (or 2053 counting only the distinct ones).

The product of its (nonzero) digits is 889056, while the sum is 51.

The square root of 780796716 is about 27942.7399515509. The cubic root of 780796716 is about 920.8297161960.

The spelling of 780796716 in words is "seven hundred eighty million, seven hundred ninety-six thousand, seven hundred sixteen".