789491 has 2 divisors, whose sum is σ = 789492. Its totient is φ = 789490.

The previous prime is 789473. The next prime is 789493. The reversal of 789491 is 194987.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 789491 - 2¹⁰ = 788467 is a prime.

Together with 789493, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (789493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 394745 + 394746.

It is an arithmetic number, because the mean of its divisors is an integer number (394746).

2⁷⁸⁹⁴⁹¹ is an apocalyptic number.

789491 is a deficient number, since it is larger than the sum of its proper divisors (1).

789491 is an equidigital number, since it uses as much as digits as its factorization.

789491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 38.

The square root of 789491 is about 888.5330607242. The cubic root of 789491 is about 92.4234965201.

It can be divided in two parts, 7 and 89491, that added together give a palindrome (89498).

The spelling of 789491 in words is "seven hundred eighty-nine thousand, four hundred ninety-one".