289294081 has 4 divisors (see below), whose sum is σ = 291997872. Its totient is φ = 286590292.

The previous prime is 289294043. The next prime is 289294099. The reversal of 289294081 is 180492982.

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 289294081 - 2⁹ = 289293569 is a prime.

It is a super-2 number, since 2×289294081² = 167382130603269122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (289294001) 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, 1351735 + ... + 1351948.

It is an arithmetic number, because the mean of its divisors is an integer number (72999468).

Almost surely, 2^289294081 is an apocalyptic number.

It is an amenable number.

289294081 is a deficient number, since it is larger than the sum of its proper divisors (2703791).

289294081 is a wasteful number, since it uses less digits than its factorization.

289294081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2703790.

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 289294081 is about 17008.6472419179. The cubic root of 289294081 is about 661.3730834116.

The spelling of 289294081 in words is "two hundred eighty-nine million, two hundred ninety-four thousand, eighty-one".