289728983 has 2 divisors, whose sum is σ = 289728984. Its totient is φ = 289728982.

The previous prime is 289728973. The next prime is 289729003. The reversal of 289728983 is 389827982.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 289728983 - 2¹⁰ = 289727959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (289728913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144864491 + 144864492.

It is an arithmetic number, because the mean of its divisors is an integer number (144864492).

Almost surely, 2^289728983 is an apocalyptic number.

289728983 is a deficient number, since it is larger than the sum of its proper divisors (1).

289728983 is an equidigital number, since it uses as much as digits as its factorization.

289728983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3483648, while the sum is 56.

The square root of 289728983 is about 17021.4271728313. The cubic root of 289728983 is about 661.7043362568.

The spelling of 289728983 in words is "two hundred eighty-nine million, seven hundred twenty-eight thousand, nine hundred eighty-three".