789280 has 24 divisors (see below), whose sum is σ = 1865052. Its totient is φ = 315648.

The previous prime is 789251. The next prime is 789311. The reversal of 789280 is 82987.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 767376 + 21904 = 876^2 + 148^2 .

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is an Ulam 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, 2307 + ... + 2626.

2⁷⁸⁹²⁸⁰ is an apocalyptic number.

It is an amenable number.

789280 is an abundant number, since it is smaller than the sum of its proper divisors (1075772).

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

789280 is a wasteful number, since it uses less digits than its factorization.

789280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4948 (or 4940 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 789280 is about 888.4143177595. The cubic root of 789280 is about 92.4152620605.

The spelling of 789280 in words is "seven hundred eighty-nine thousand, two hundred eighty".