289957297 has 16 divisors (see below), whose sum is σ = 348106752. Its totient is φ = 236134800.

The previous prime is 289957259. The next prime is 289957303. The reversal of 289957297 is 792759982.

It is a cyclic number.

It is not a de Polignac number, because 289957297 - 2¹¹ = 289955249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (289957697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18348 + ... + 30274.

It is an arithmetic number, because the mean of its divisors is an integer number (21756672).

Almost surely, 2^289957297 is an apocalyptic number.

It is an amenable number.

289957297 is a deficient number, since it is larger than the sum of its proper divisors (58149455).

289957297 is a wasteful number, since it uses less digits than its factorization.

289957297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12108.

The product of its digits is 5715360, while the sum is 58.

The square root of 289957297 is about 17028.1325165151. The cubic root of 289957297 is about 661.8781040490.

The spelling of 289957297 in words is "two hundred eighty-nine million, nine hundred fifty-seven thousand, two hundred ninety-seven".