289024427 has 8 divisors (see below), whose sum is σ = 297296496. Its totient is φ = 280776672.

The previous prime is 289024391. The next prime is 289024451. The reversal of 289024427 is 724420982.

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

It is a cyclic number.

It is not a de Polignac number, because 289024427 - 2⁶ = 289024363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (289024487) 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, 19553 + ... + 30989.

It is an arithmetic number, because the mean of its divisors is an integer number (37162062).

Almost surely, 2^289024427 is an apocalyptic number.

289024427 is a deficient number, since it is larger than the sum of its proper divisors (8272069).

289024427 is a wasteful number, since it uses less digits than its factorization.

289024427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12157.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 289024427 is about 17000.7184259960. The cubic root of 289024427 is about 661.1675286385.

The spelling of 289024427 in words is "two hundred eighty-nine million, twenty-four thousand, four hundred twenty-seven".