289343793 has 4 divisors (see below), whose sum is σ = 385791728. Its totient is φ = 192895860.

The previous prime is 289343783. The next prime is 289343807. The reversal of 289343793 is 397343982.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 289343793 - 2⁴ = 289343777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (289343713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48223963 + ... + 48223968.

It is an arithmetic number, because the mean of its divisors is an integer number (96447932).

Almost surely, 2^289343793 is an apocalyptic number.

It is an amenable number.

289343793 is a deficient number, since it is larger than the sum of its proper divisors (96447935).

289343793 is an equidigital number, since it uses as much as digits as its factorization.

289343793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96447934.

The product of its digits is 979776, while the sum is 48.

The square root of 289343793 is about 17010.1085534455. The cubic root of 289343793 is about 661.4109644674.

The spelling of 289343793 in words is "two hundred eighty-nine million, three hundred forty-three thousand, seven hundred ninety-three".