789453491 has 4 divisors (see below), whose sum is σ = 797118192. Its totient is φ = 781788792.

The previous prime is 789453487. The next prime is 789453503. The reversal of 789453491 is 194354987.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 194354987 = 3697 ⋅52571.

It is a cyclic number.

It is not a de Polignac number, because 789453491 - 2² = 789453487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (789453451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3832196 + ... + 3832401.

It is an arithmetic number, because the mean of its divisors is an integer number (199279548).

Almost surely, 2^789453491 is an apocalyptic number.

789453491 is a deficient number, since it is larger than the sum of its proper divisors (7664701).

789453491 is a wasteful number, since it uses less digits than its factorization.

789453491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7664700.

The product of its digits is 1088640, while the sum is 50.

The square root of 789453491 is about 28097.2150043381. The cubic root of 789453491 is about 924.2203280580.

The spelling of 789453491 in words is "seven hundred eighty-nine million, four hundred fifty-three thousand, four hundred ninety-one".