788778966 has 32 divisors (see below), whose sum is σ = 1620062208. Its totient is φ = 255921120.

The previous prime is 788778961. The next prime is 788778967. The reversal of 788778966 is 669877887.

It is a junction number, because it is equal to n+sod(n) for n = 788778897 and 788778906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (788778961) 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, 30621 + ... + 50151.

It is an arithmetic number, because the mean of its divisors is an integer number (50626944).

Almost surely, 2^788778966 is an apocalyptic number.

788778966 is an abundant number, since it is smaller than the sum of its proper divisors (831283242).

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

788778966 is a wasteful number, since it uses less digits than its factorization.

788778966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19716.

The product of its digits is 56899584, while the sum is 66.

The square root of 788778966 is about 28085.2090253927. The cubic root of 788778966 is about 923.9570288856.

The spelling of 788778966 in words is "seven hundred eighty-eight million, seven hundred seventy-eight thousand, nine hundred sixty-six".