289793293 has 2 divisors, whose sum is σ = 289793294. Its totient is φ = 289793292.

The previous prime is 289793243. The next prime is 289793321. The reversal of 289793293 is 392397982.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 223891369 + 65901924 = 14963^2 + 8118^2 .

It is a cyclic number.

It is not a de Polignac number, because 289793293 - 2¹³ = 289785101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 289793293.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (289793243) 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 as a sum of consecutive naturals, namely, 144896646 + 144896647.

It is an arithmetic number, because the mean of its divisors is an integer number (144896647).

Almost surely, 2^289793293 is an apocalyptic number.

It is an amenable number.

289793293 is a deficient number, since it is larger than the sum of its proper divisors (1).

289793293 is an equidigital number, since it uses as much as digits as its factorization.

289793293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 52.

The square root of 289793293 is about 17023.3161575529. The cubic root of 289793293 is about 661.7532912690.

The spelling of 289793293 in words is "two hundred eighty-nine million, seven hundred ninety-three thousand, two hundred ninety-three".