289564854 has 12 divisors (see below), whose sum is σ = 579213084. Its totient is φ = 96507724.

The previous prime is 289564819. The next prime is 289564867. The reversal of 289564854 is 458465982.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 289564797 and 289564806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38209 + ... + 45155.

It is an arithmetic number, because the mean of its divisors is an integer number (48267757).

Almost surely, 2^289564854 is an apocalyptic number.

289564854 is an abundant number, since it is smaller than the sum of its proper divisors (289648230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

289564854 is an frugal number, since it uses more digits than its factorization.

289564854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13899 (or 6952 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 51.

The square root of 289564854 is about 17016.6052431147. The cubic root of 289564854 is about 661.5793626991.

The spelling of 289564854 in words is "two hundred eighty-nine million, five hundred sixty-four thousand, eight hundred fifty-four".