789621056 has 56 divisors (see below), whose sum is σ = 1828897536. Its totient is φ = 331200000.

The previous prime is 789621047. The next prime is 789621059. The reversal of 789621056 is 650126987.

It is a tau number, because it is divible by the number of its divisors (56).

It is a junction number, because it is equal to n+sod(n) for n = 789620998 and 789621016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (789621059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2306 + ... + 39806.

Almost surely, 2^789621056 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 789621056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (914448768).

789621056 is an abundant number, since it is smaller than the sum of its proper divisors (1039276480).

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

789621056 is a wasteful number, since it uses less digits than its factorization.

789621056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37567 (or 37557 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 789621056 is about 28100.1967252900. The cubic root of 789621056 is about 924.2857133848.

The spelling of 789621056 in words is "seven hundred eighty-nine million, six hundred twenty-one thousand, fifty-six".