789421056 has 88 divisors (see below), whose sum is σ = 2113388304. Its totient is φ = 261980160.

The previous prime is 789421049. The next prime is 789421079. The reversal of 789421056 is 650124987.

It is a junction number, because it is equal to n+sod(n) for n = 789420999 and 789421017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 961126 + ... + 961946.

Almost surely, 2^789421056 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 789421056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1056694152).

789421056 is an abundant number, since it is smaller than the sum of its proper divisors (1323967248).

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

789421056 is a wasteful number, since it uses less digits than its factorization.

789421056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157 (or 1139 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 789421056 is about 28096.6378059724. The cubic root of 789421056 is about 924.2076705689.

The spelling of 789421056 in words is "seven hundred eighty-nine million, four hundred twenty-one thousand, fifty-six".