289089465 has 96 divisors (see below), whose sum is σ = 574341120. Its totient is φ = 123451776.

The previous prime is 289089443. The next prime is 289089467. The reversal of 289089465 is 564980982.

It is not a de Polignac number, because 289089465 - 2¹⁵ = 289056697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (289089467) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1773474 + ... + 1773636.

It is an arithmetic number, because the mean of its divisors is an integer number (5982720).

Almost surely, 2^289089465 is an apocalyptic number.

It is an amenable number.

289089465 is a deficient number, since it is larger than the sum of its proper divisors (285251655).

289089465 is a wasteful number, since it uses less digits than its factorization.

289089465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 51.

The square root of 289089465 is about 17002.6311199179. The cubic root of 289089465 is about 661.2171182056.

The spelling of 289089465 in words is "two hundred eighty-nine million, eighty-nine thousand, four hundred sixty-five".