289083945 has 16 divisors (see below), whose sum is σ = 466630272. Its totient is φ = 152812800.

The previous prime is 289083931. The next prime is 289083947. The reversal of 289083945 is 549380982.

It is not a de Polignac number, because 289083945 - 2¹⁶ = 289018409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 289083894 and 289083903.

It is not an unprimeable number, because it can be changed into a prime (289083947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83581 + ... + 86970.

It is an arithmetic number, because the mean of its divisors is an integer number (29164392).

Almost surely, 2^289083945 is an apocalyptic number.

It is an amenable number.

289083945 is a deficient number, since it is larger than the sum of its proper divisors (177546327).

289083945 is a wasteful number, since it uses less digits than its factorization.

289083945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170672.

The product of its (nonzero) digits is 622080, while the sum is 48.

The square root of 289083945 is about 17002.4687913256. The cubic root of 289083945 is about 661.2129096564.

The spelling of 289083945 in words is "two hundred eighty-nine million, eighty-three thousand, nine hundred forty-five".