289354561 has 8 divisors (see below), whose sum is σ = 292994240. Its totient is φ = 285733008.

The previous prime is 289354529. The next prime is 289354567. The reversal of 289354561 is 165453982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 289354561 - 2⁵ = 289354529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (289354567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29140 + ... + 37786.

It is an arithmetic number, because the mean of its divisors is an integer number (36624280).

Almost surely, 2^289354561 is an apocalyptic number.

It is an amenable number.

289354561 is a deficient number, since it is larger than the sum of its proper divisors (3639679).

289354561 is a wasteful number, since it uses less digits than its factorization.

289354561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9063.

The product of its digits is 259200, while the sum is 43.

The square root of 289354561 is about 17010.4250681751. The cubic root of 289354561 is about 661.4191692225.

The spelling of 289354561 in words is "two hundred eighty-nine million, three hundred fifty-four thousand, five hundred sixty-one".