289253693 has 4 divisors (see below), whose sum is σ = 289611168. Its totient is φ = 288896220.

The previous prime is 289253689. The next prime is 289253711. The reversal of 289253693 is 396352982.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 289253693 - 2² = 289253689 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 (289253603) 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, 177521 + ... + 179142.

It is an arithmetic number, because the mean of its divisors is an integer number (72402792).

Almost surely, 2^289253693 is an apocalyptic number.

It is an amenable number.

289253693 is a deficient number, since it is larger than the sum of its proper divisors (357475).

289253693 is an equidigital number, since it uses as much as digits as its factorization.

289253693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357474.

The product of its digits is 699840, while the sum is 47.

The square root of 289253693 is about 17007.4599220460. The cubic root of 289253693 is about 661.3423041447.

The spelling of 289253693 in words is "two hundred eighty-nine million, two hundred fifty-three thousand, six hundred ninety-three".