289675421 has 8 divisors (see below), whose sum is σ = 331530240. Its totient is φ = 247938768.

The previous prime is 289675367. The next prime is 289675447. The reversal of 289675421 is 124576982.

It is a happy number.

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

It is not a de Polignac number, because 289675421 - 2⁶ = 289675357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289675621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24221 + ... + 34146.

It is an arithmetic number, because the mean of its divisors is an integer number (41441280).

Almost surely, 2^289675421 is an apocalyptic number.

It is an amenable number.

289675421 is a deficient number, since it is larger than the sum of its proper divisors (41854819).

289675421 is an equidigital number, since it uses as much as digits as its factorization.

289675421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59083.

The product of its digits is 241920, while the sum is 44.

The square root of 289675421 is about 17019.8537302763. The cubic root of 289675421 is about 661.6635574669.

The spelling of 289675421 in words is "two hundred eighty-nine million, six hundred seventy-five thousand, four hundred twenty-one".