789012 has 72 divisors (see below), whose sum is σ = 2376192. Its totient is φ = 216000.

The previous prime is 789001. The next prime is 789017. The reversal of 789012 is 210987.

It is a super-2 number, since 2×789012² = 1245079872288, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (789017) by changing a digit.

789012 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7762 + ... + 7862.

2⁷⁸⁹⁰¹² 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 789012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1188096).

789012 is an abundant number, since it is smaller than the sum of its proper divisors (1587180).

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

789012 is a wasteful number, since it uses less digits than its factorization.

789012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 789012 is about 888.2634744264. The cubic root of 789012 is about 92.4048010099.

Adding to 789012 its reverse (210987), we get a palindrome (999999).

The spelling of 789012 in words is "seven hundred eighty-nine thousand, twelve".