289331693 has 8 divisors (see below), whose sum is σ = 336269760. Its totient is φ = 243794880.

The previous prime is 289331681. The next prime is 289331699. The reversal of 289331693 is 396133982.

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

It is not a de Polignac number, because 289331693 - 2¹⁸ = 289069549 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 (289331699) 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, 349868 + ... + 350693.

It is an arithmetic number, because the mean of its divisors is an integer number (42033720).

Almost surely, 2^289331693 is an apocalyptic number.

It is an amenable number.

289331693 is a deficient number, since it is larger than the sum of its proper divisors (46938067).

289331693 is an equidigital number, since it uses as much as digits as its factorization.

289331693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700627.

The product of its digits is 209952, while the sum is 44.

The square root of 289331693 is about 17009.7528788633. The cubic root of 289331693 is about 661.4017445424.

The spelling of 289331693 in words is "two hundred eighty-nine million, three hundred thirty-one thousand, six hundred ninety-three".