789220992 has 128 divisors (see below), whose sum is σ = 2447216640. Its totient is φ = 220658688.

The previous prime is 789220973. The next prime is 789221023. The reversal of 789220992 is 299022987.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123213 + ... + 129459.

It is an arithmetic number, because the mean of its divisors is an integer number (19118880).

Almost surely, 2^789220992 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 789220992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1223608320).

789220992 is an abundant number, since it is smaller than the sum of its proper divisors (1657995648).

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

789220992 is a wasteful number, since it uses less digits than its factorization.

789220992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6318 (or 6306 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 789220992 is about 28093.0772967292. The cubic root of 789220992 is about 924.1295895904.

The spelling of 789220992 in words is "seven hundred eighty-nine million, two hundred twenty thousand, nine hundred ninety-two".