289234471 has 2 divisors, whose sum is σ = 289234472. Its totient is φ = 289234470.

The previous prime is 289234427. The next prime is 289234493. The reversal of 289234471 is 174432982.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 289234471 - 2¹¹ = 289232423 is a prime.

It is a super-3 number, since 3×289234471³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (289234171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144617235 + 144617236.

It is an arithmetic number, because the mean of its divisors is an integer number (144617236).

Almost surely, 2^289234471 is an apocalyptic number.

289234471 is a deficient number, since it is larger than the sum of its proper divisors (1).

289234471 is an equidigital number, since it uses as much as digits as its factorization.

289234471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 40.

The square root of 289234471 is about 17006.8948076949. The cubic root of 289234471 is about 661.3276542558.

The spelling of 289234471 in words is "two hundred eighty-nine million, two hundred thirty-four thousand, four hundred seventy-one".