289234749 has 8 divisors (see below), whose sum is σ = 386098720. Its totient is φ = 192596976.

The previous prime is 289234717. The next prime is 289234763. The reversal of 289234749 is 947432982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 289234749 - 2⁵ = 289234717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 289234698 and 289234707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289234789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53542 + ... + 58695.

It is an arithmetic number, because the mean of its divisors is an integer number (48262340).

Almost surely, 2^289234749 is an apocalyptic number.

It is an amenable number.

289234749 is a deficient number, since it is larger than the sum of its proper divisors (96863971).

289234749 is a wasteful number, since it uses less digits than its factorization.

289234749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113099.

The product of its digits is 870912, while the sum is 48.

The square root of 289234749 is about 17006.9029808487. The cubic root of 289234749 is about 661.3278661358.

The spelling of 289234749 in words is "two hundred eighty-nine million, two hundred thirty-four thousand, seven hundred forty-nine".