289412427 has 16 divisors (see below), whose sum is σ = 423855360. Its totient is φ = 174838752.

The previous prime is 289412419. The next prime is 289412429. The reversal of 289412427 is 724214982.

It is a happy number.

It is not a de Polignac number, because 289412427 - 2³ = 289412419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (289412429) 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, 109068 + ... + 111689.

It is an arithmetic number, because the mean of its divisors is an integer number (26490960).

Almost surely, 2^289412427 is an apocalyptic number.

289412427 is a deficient number, since it is larger than the sum of its proper divisors (134442933).

289412427 is a wasteful number, since it uses less digits than its factorization.

289412427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220802.

The product of its digits is 64512, while the sum is 39.

The square root of 289412427 is about 17012.1258812648. The cubic root of 289412427 is about 661.4632571522.

The spelling of 289412427 in words is "two hundred eighty-nine million, four hundred twelve thousand, four hundred twenty-seven".