289148823 has 6 divisors (see below), whose sum is σ = 417659424. Its totient is φ = 192765876.

The previous prime is 289148789. The next prime is 289148831. The reversal of 289148823 is 328841982.

It is not a de Polignac number, because 289148823 - 2⁹ = 289148311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289148323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16063815 + ... + 16063832.

It is an arithmetic number, because the mean of its divisors is an integer number (69609904).

Almost surely, 2^289148823 is an apocalyptic number.

289148823 is a deficient number, since it is larger than the sum of its proper divisors (128510601).

289148823 is a wasteful number, since it uses less digits than its factorization.

289148823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32127653 (or 32127650 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 289148823 is about 17004.3765836916. The cubic root of 289148823 is about 661.2623704481.

The spelling of 289148823 in words is "two hundred eighty-nine million, one hundred forty-eight thousand, eight hundred twenty-three".