289934497 has 4 divisors (see below), whose sum is σ = 290046276. Its totient is φ = 289822720.

The previous prime is 289934483. The next prime is 289934501. The reversal of 289934497 is 794439982.

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 134583201 + 155351296 = 11601^2 + 12464^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-289934497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (289934417) 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, 51904 + ... + 57217.

It is an arithmetic number, because the mean of its divisors is an integer number (72511569).

Almost surely, 2^289934497 is an apocalyptic number.

It is an amenable number.

289934497 is a deficient number, since it is larger than the sum of its proper divisors (111779).

289934497 is a wasteful number, since it uses less digits than its factorization.

289934497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111778.

The product of its digits is 3919104, while the sum is 55.

The square root of 289934497 is about 17027.4630230108. The cubic root of 289934497 is about 661.8607552687.

The spelling of 289934497 in words is "two hundred eighty-nine million, nine hundred thirty-four thousand, four hundred ninety-seven".