289479254 has 4 divisors (see below), whose sum is σ = 434218884. Its totient is φ = 144739626.

The previous prime is 289479241. The next prime is 289479301. The reversal of 289479254 is 452974982.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 452974982 = 2 ⋅226487491.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 72369812 + ... + 72369815.

It is an arithmetic number, because the mean of its divisors is an integer number (108554721).

Almost surely, 2^289479254 is an apocalyptic number.

289479254 is a deficient number, since it is larger than the sum of its proper divisors (144739630).

289479254 is a wasteful number, since it uses less digits than its factorization.

289479254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144739629.

The product of its digits is 1451520, while the sum is 50.

The square root of 289479254 is about 17014.0898669309. The cubic root of 289479254 is about 661.5141651288.

The spelling of 289479254 in words is "two hundred eighty-nine million, four hundred seventy-nine thousand, two hundred fifty-four".