289173047 has 2 divisors, whose sum is σ = 289173048. Its totient is φ = 289173046.

The previous prime is 289173037. The next prime is 289173097. The reversal of 289173047 is 740371982.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 289173047 - 2¹⁴ = 289156663 is a prime.

It is a super-2 number, since 2×289173047² = 167242102222528418, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 289172995 and 289173013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (289173037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144586523 + 144586524.

It is an arithmetic number, because the mean of its divisors is an integer number (144586524).

Almost surely, 2^289173047 is an apocalyptic number.

289173047 is a deficient number, since it is larger than the sum of its proper divisors (1).

289173047 is an equidigital number, since it uses as much as digits as its factorization.

289173047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 289173047 is about 17005.0888559866. The cubic root of 289173047 is about 661.2808361090.

The spelling of 289173047 in words is "two hundred eighty-nine million, one hundred seventy-three thousand, forty-seven".