289031473 has 4 divisors (see below), whose sum is σ = 289199988. Its totient is φ = 288862960.

The previous prime is 289031471. The next prime is 289031497. The reversal of 289031473 is 374130982.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 75637809 + 213393664 = 8697^2 + 14608^2 .

It is a cyclic number.

It is not a de Polignac number, because 289031473 - 2¹ = 289031471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (289031471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81658 + ... + 85123.

It is an arithmetic number, because the mean of its divisors is an integer number (72299997).

Almost surely, 2^289031473 is an apocalyptic number.

It is an amenable number.

289031473 is a deficient number, since it is larger than the sum of its proper divisors (168515).

289031473 is a wasteful number, since it uses less digits than its factorization.

289031473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168514.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 289031473 is about 17000.9256512697. The cubic root of 289031473 is about 661.1729013661.

The spelling of 289031473 in words is "two hundred eighty-nine million, thirty-one thousand, four hundred seventy-three".