789980 has 12 divisors (see below), whose sum is σ = 1659000. Its totient is φ = 315984.

The previous prime is 789979. The next prime is 790003. The reversal of 789980 is 89987.

789980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19730 + ... + 19769.

It is an arithmetic number, because the mean of its divisors is an integer number (138250).

2⁷⁸⁹⁹⁸⁰ is an apocalyptic number.

It is an amenable number.

789980 is an abundant number, since it is smaller than the sum of its proper divisors (869020).

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

789980 is a wasteful number, since it uses less digits than its factorization.

789980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39508 (or 39506 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 789980 is about 888.8081907813. The cubic root of 789980 is about 92.4425745345.

The spelling of 789980 in words is "seven hundred eighty-nine thousand, nine hundred eighty".