289068965 has 8 divisors (see below), whose sum is σ = 347059608. Its totient is φ = 231137280.

The previous prime is 289068961. The next prime is 289068971. The reversal of 289068965 is 569860982.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 961 + 289068004 = 31^2 + 17002^2 .

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

It is not a de Polignac number, because 289068965 - 2² = 289068961 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289068961) 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, 3116 + ... + 24245.

It is an arithmetic number, because the mean of its divisors is an integer number (43382451).

Almost surely, 2^289068965 is an apocalyptic number.

It is an amenable number.

289068965 is a deficient number, since it is larger than the sum of its proper divisors (57990643).

289068965 is a wasteful number, since it uses less digits than its factorization.

289068965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29479.

The product of its (nonzero) digits is 1866240, while the sum is 53.

The square root of 289068965 is about 17002.0282613575. The cubic root of 289068965 is about 661.2014883597.

The spelling of 289068965 in words is "two hundred eighty-nine million, sixty-eight thousand, nine hundred sixty-five".