289183649 has 8 divisors (see below), whose sum is σ = 292196520. Its totient is φ = 286177536.

The previous prime is 289183633. The next prime is 289183663. The reversal of 289183649 is 946381982.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 122257249 + 166926400 = 11057^2 + 12920^2 .

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 289183649 - 2⁴ = 289183633 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 289183597 and 289183606.

It is not an unprimeable number, because it can be changed into a prime (289183849) 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, 161849 + ... + 163625.

It is an arithmetic number, because the mean of its divisors is an integer number (36524565).

Almost surely, 2^289183649 is an apocalyptic number.

It is an amenable number.

289183649 is a deficient number, since it is larger than the sum of its proper divisors (3012871).

289183649 is a wasteful number, since it uses less digits than its factorization.

289183649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3379.

The product of its digits is 746496, while the sum is 50.

The square root of 289183649 is about 17005.4005833441. The cubic root of 289183649 is about 661.2889175604.

The spelling of 289183649 in words is "two hundred eighty-nine million, one hundred eighty-three thousand, six hundred forty-nine".