289388067 has 8 divisors (see below), whose sum is σ = 386101440. Its totient is φ = 192800040.

The previous prime is 289388041. The next prime is 289388083. The reversal of 289388067 is 760883982.

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

It is not a de Polignac number, because 289388067 - 2⁸ = 289387811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (289388017) 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, 25809 + ... + 35282.

It is an arithmetic number, because the mean of its divisors is an integer number (48262680).

Almost surely, 2^289388067 is an apocalyptic number.

289388067 is a deficient number, since it is larger than the sum of its proper divisors (96713373).

289388067 is a wasteful number, since it uses less digits than its factorization.

289388067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62673.

The product of its (nonzero) digits is 1161216, while the sum is 51.

The square root of 289388067 is about 17011.4099062952. The cubic root of 289388067 is about 661.4446980585. Note that the first 3 decimals are identical.

The spelling of 289388067 in words is "two hundred eighty-nine million, three hundred eighty-eight thousand, sixty-seven".