289679485 has 8 divisors (see below), whose sum is σ = 347756760. Its totient is φ = 231649344.

The previous prime is 289679483. The next prime is 289679543. The reversal of 289679485 is 584976982.

It can be written as a sum of positive squares in 4 ways, for example, as 107267449 + 182412036 = 10357^2 + 13506^2 .

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 289679485 - 2¹ = 289679483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289679483) 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, 3559 + ... + 24331.

It is an arithmetic number, because the mean of its divisors is an integer number (43469595).

Almost surely, 2^289679485 is an apocalyptic number.

It is an amenable number.

289679485 is a deficient number, since it is larger than the sum of its proper divisors (58077275).

289679485 is a wasteful number, since it uses less digits than its factorization.

289679485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23567.

The product of its digits is 8709120, while the sum is 58.

The square root of 289679485 is about 17019.9731198378. The cubic root of 289679485 is about 661.6666517211. Note that the first 4 decimals are identical.

The spelling of 289679485 in words is "two hundred eighty-nine million, six hundred seventy-nine thousand, four hundred eighty-five".