289389573 has 12 divisors (see below), whose sum is σ = 456007968. Its totient is φ = 175387560.

The previous prime is 289389571. The next prime is 289389599. The reversal of 289389573 is 375983982.

It is a happy number.

It is not a de Polignac number, because 289389573 - 2¹ = 289389571 is a prime.

It is a super-2 number, since 2×289389573² = 167492649922244658, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289389571) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1461465 + ... + 1461662.

It is an arithmetic number, because the mean of its divisors is an integer number (38000664).

Almost surely, 2^289389573 is an apocalyptic number.

It is an amenable number.

289389573 is a deficient number, since it is larger than the sum of its proper divisors (166618395).

289389573 is a wasteful number, since it uses less digits than its factorization.

289389573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2923144 (or 2923141 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 289389573 is about 17011.4541706463. The cubic root of 289389573 is about 661.4458454612.

The spelling of 289389573 in words is "two hundred eighty-nine million, three hundred eighty-nine thousand, five hundred seventy-three".