789783280 has 320 divisors, whose sum is σ = 2375847936. Its totient is φ = 239616000.

The previous prime is 789783271. The next prime is 789783283. The reversal of 789783280 is 82387987.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (789783283) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6028815 + ... + 6028945.

Almost surely, 2^789783280 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 789783280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1187923968).

789783280 is an abundant number, since it is smaller than the sum of its proper divisors (1586064656).

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

789783280 is a wasteful number, since it uses less digits than its factorization.

789783280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216 (or 210 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 52.

The square root of 789783280 is about 28103.0831048837. The cubic root of 789783280 is about 924.3490057946.

The spelling of 789783280 in words is "seven hundred eighty-nine million, seven hundred eighty-three thousand, two hundred eighty".