789434 has 4 divisors (see below), whose sum is σ = 1184154. Its totient is φ = 394716.

The previous prime is 789419. The next prime is 789443. The reversal of 789434 is 434987.

789434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434987 = 7 ⋅62141.

It can be written as a sum of positive squares in only one way, i.e., 748225 + 41209 = 865^2 + 203^2 .

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

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 789394 and 789403.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197357 + ... + 197360.

2⁷⁸⁹⁴³⁴ is an apocalyptic number.

789434 is a deficient number, since it is larger than the sum of its proper divisors (394720).

789434 is a wasteful number, since it uses less digits than its factorization.

789434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394719.

The product of its digits is 24192, while the sum is 35.

The square root of 789434 is about 888.5009848053. The cubic root of 789434 is about 92.4212721899.

The spelling of 789434 in words is "seven hundred eighty-nine thousand, four hundred thirty-four".