289457427 has 16 divisors (see below), whose sum is σ = 441338112. Its totient is φ = 165306720.

The previous prime is 289457423. The next prime is 289457429. The reversal of 289457427 is 724754982.

It is not a de Polignac number, because 289457427 - 2² = 289457423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (289457423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47773 + ... + 53489.

It is an arithmetic number, because the mean of its divisors is an integer number (27583632).

Almost surely, 2^289457427 is an apocalyptic number.

289457427 is a deficient number, since it is larger than the sum of its proper divisors (151880685).

289457427 is a wasteful number, since it uses less digits than its factorization.

289457427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8138.

The product of its digits is 1128960, while the sum is 48.

The square root of 289457427 is about 17013.4484158856. The cubic root of 289457427 is about 661.4975384536.

The spelling of 289457427 in words is "two hundred eighty-nine million, four hundred fifty-seven thousand, four hundred twenty-seven".